Gary Toenniessen "Rock" and Rice: the
Rockefeller-IRRI biotechnology saga
Next year, 2010,
marks not only the International Rice Research Institute’s
50th anniversary
but also a half a century of collaboration between the
Institute and its co-founder, the Rockefeller Foundation. This includes
an alliance that started a quarter century ago to help create the new
discipline of rice biotechnology. When that effort began in 1984, Gary
Toenniessen, currently a managing director of the Foundation, led the
charge to bring the new developments in molecular and cellular biology
to rice. He shows what can be accomplished with around US$120 million of
funding and a cornucopia of ideas and tells some fascinating, little-known tales about how rice became the model crop for biotechnology
research.
A
career with the Rockefeller Foundation I grew up on a farm in upstate New York. When
you grow up on a farm, you mainly work on that farm, as I did, all the
way through undergraduate school. I basically commuted to the State University of New York at Buffalo and worked on
the farm weekends and all through the summer. I chose mathematics at the
university because it came to me easily. So, I didn’t have to spend an
awful lot of time at the university. I then received a fellowship from
the U.S. Public Health Service that sent me to graduate
school. The other alternative I had at that particular time was going to
the Vietnam War. So, going to graduate school was
certainly a better alternative. I chose the University of North Carolina at Chapel Hill and spent
5 years there getting my PhD degree in microbiology.
When I was looking around for a job at
the end of that training
period, the Rockefeller Foundation contacted me about a new type
of postdoctoral fellowship they had where one worked with the Foundation
while also pursuing some research at a nearby research institute. I
received one of those fellowships and, within a year, I was made a
program officer of the Rockefeller Foundation. So, for almost my entire
career, which is now 38 years, I have been a program officer in the New
York office of the Rockefeller Foundation.
I was trained as a microbiologist and that meant molecular
biology as well. So, when the Foundation, in the late 1970s-early 1980s,
decided to move into applying the new tools of molecular and cellular
biology to crop improvement, I was one of the people on the staff who
knew something about molecular biology and I began working in that area
and assumed more responsibility for the Foundation’s investments in that
area. Once the Rice Biotechnology Program began [in 1984], I
more or less ran that program from the New York office. We also had John O’Toole, a former IRRI agronomist and rice
physiologist [1974-84], working on the program, initially from India and
then from Bangkok; and Tosh Murashige helping in China, Korea, and the
Philippines.
So, that’s pretty much my history. I’m still with the
Foundation. In recent years, we’re working more in Africa. So, I spend a
lot of time on the African Program today. But I have to say the
most rewarding work I’ve done with the Foundation was that period of
time from about 1984 to 2002 when we invested about US$120 million in
the Rice Biotechnology Program. I worked very closely with IRRI during
that whole period of time.
RF’s
course change from doing to funding Foundations are organizations that are prone
to significant change. In large part because there is not a huge capital
investment in buildings and the like and there isn’t a huge investment
in large staffs, unlike universities where you have tenured
professors
and a lot of faculty. So, foundations tend to change quite significantly
when new leadership comes in and, in my history with the Rockefeller
Foundation, that certainly occurred with every new president. In 1980, Dr. Richard W. Lyman [photo left] became president of
the Foundation. He had been president of Stanford University before he came to the Foundation.
He had quite a different philosophy about what a foundation should do,
different from what the Foundation was actually doing at that time. At
that time, we had about eight program officers in agriculture in New York
and 40 some in the field. Some were located at international centers
such as IRRI, CIMMYT, and CIAT. His feeling was that foundations really
shouldn’t be operational. They should be organizations that provide
funds to others who get the job done. In the case of agriculture, he
congratulated us for helping to establish IRRI, CIMMYT, CIAT, and IITA and a number of the other international centers
and for creating mechanisms, such as the CGIAR, to fund those centers.
But he asked the question:
Why do we need to continue having
our own staff [in these areas] when those centers now exist? To help
resolve that question, he put together an external team of advisors to
assess, first of all, whether or not the Rockefeller Foundation should
even continue in agriculture and, secondly whether the Foundation should
continue in agriculture, what it should do moving forward. That was a
three-person team: Robert McNamara, then president of the World Bank; Bryant Kearl, who was vice chancellor of the
University of Wisconsin; and Perry Atkinson, chancellor of Texas A&M University.
They came back with a report (A Review of the Rockefeller Foundation
Conquest of Hunger Program, August 1982 - Rockefeller Archives Center),
which, like the new president, congratulated the Foundation for what its
field programs had accomplished. And they agreed with him that it was
now possible for the Foundation to bring its field operations to a
close. In fact, I can remember their report stating that, in many ways,
the era in which expatriate scientists go out and actually conduct the
research was coming to a close and what the Foundation should really do
is to find ways of supporting the international centers and
strengthening existing national programs.
So, that team of advisors recommended that the Foundation
work in two principal areas. One was to make sure that the new advances
that were occurring in cellular and molecular biology were applied to
tropical crops, which were important in developing countries and which were the
staple foods of the poor in those countries. And secondly, the
Foundation should develop a strategy for Africa where the food situation
was deteriorating. So, those were the two directions that we moved in.
I must say that it was a difficult time because to implement
that, we did go through a process of letting go of most of our field staff
and a lot of staff in New York over a 2- or 3-year period. Most of them
were pretty close to retirement or past early retirement age, so we were
able to allow them to retire from the Foundation and take a salary from
some international center. We also created the International Agricultural Development Service,
which, in 1985, merged with Winrock International. So, a number of staff members
were also transferred to that new organization that focused on helping
to strengthen national programs. In fact even before Dr. Lyman became
president, the International Agriculture Development Service had been
created because it was recognized that the strengthening of national
programs was a high priority and the Foundation was looking for a way to
help the broader donor community contribute to that process.
Creating rice biotechnology So, we then moved quite quickly
to implement the first recommendation, which was to apply the new
developments in molecular and cellular biology to tropical crops. Dr.
Alva App, the new RF director of agriculture, came in. Al had spent about
6 years [1976-82] at IRRI as a visiting scientist seconded to IRRI as
an employee of the Boyce Thompson Institute for Plant Research, to lead
the work on the azolla – rice combination. So, it was clear to me,
from the time Al arrived, that we were going to work on rice because he
quite correctly recognized its importance. But we still did go through,
or he had me go through, a very systematic process of looking at the
eight most important crops in determining whether or not the breeding
programs were strong enough in those crops to make it reasonable to
introduce a biotechnology program and what the impact would be if the
Foundation did do that. When we compared all of the results, rice was
clearly at the top.
We could build on what were already strong breeding
programs. IRRI was there so we had a strong partner to work with and, of
course, rice fed more people than any other crop. Cassava actually came up fairly high as well. But the
breeding programs for cassava were nowhere near as strong as the
breeding programs for rice, so we wound up investing, I would say, about
80% of the funds that we committed to biotechnology to rice over the
1984 to 2002 period. As I said, we committed about US$120 million to
that work over a period of 17-18 years.
First of all, we received approval from our trustees to make a
major long-term commitment. So, the initial document that went to the
Foundation’s trustees in December 1984 informed them that this was
likely to be a 15 or more-year-long program and, at that time, we said
that and the Foundation was likely to commit US$80 million or more. If
you adjust US$80 million for inflation over that period of time, it
comes out to about $120 million. So, we were able to do a lot of things
that we wouldn’t otherwise have been able to do because we knew we had that
commitment from the trustees.
We designed the program to have three major components. The
first was to “create” rice biotechnology. Molecular biology was a brand new discipline in the
early 1980s and there was nobody in the world, except for a few Japanese
who were doing serious work on rice molecular biology. There was no
biotechnology program at IRRI. There were no rice molecular biology
programs in the United States. I know because I went around and I
visited the leading molecular biology laboratories and determined that none
of them were working on rice. I visited the major rice research
institutions around the world and determined that none of them were
doing any significant work on molecular biology. So, it was a wide open
opportunity for the Foundation to lead the effort to create a
significant biotechnology research program for the most important food
crop in the world.
Creating that technology was the first component. That meant
creating a molecular genetic map of rice and then creating the tools
that would allow the genetic engineering of rice. It meant understanding
the way the rice genome is structured, understanding at the molecular
level the relationship between rice and rice pathogens. There was a lot
of investment in those basic tools that make up the set of technologies
that we call biotechnology.
Finding relevant traits The second component was to
work on the traits for which one would want to use those tools to
introduce into rice once the
tools were available. But we needed to understand those traits at the
molecular level in order
to use molecular tools. We hired Bob Herdt [photo right,
IRRI economist, 1973-83, head of the IRRI Economics Department, 1978-83;
later director, agricultural sciences, and RF vice president; currently
adjunct international professor of applied
economics and management, Cornell University]
as our colleague at that time. Previously, his job at IRRI had been to
prioritize traits that IRRI was going to work on so he had already
developed the methodology for prioritizing traits and he did the same
thing for the Foundation’s rice biotechnology program.
It’s basically a technique that measures the yield forgone
because you don’t have that trait. For example, at that particular time,
there were no known genes for resistance to the rice tungro virus, which,
at that time, was causing a lot of problems in the Philippines and other
countries in Southeast Asia. So, that turned out to be very high on his
list of priorities. There were reasons to believe that biotechnology
would work as a way of addressing the tungro virus problem. We had a list of
about 20 traits. One of those traits—perhaps #17 or 18—was yellow
endosperm rice and I’ll come back to explaining how we identified that
[i.e., Golden Rice] as a trait.
Building molecular biology
capacity in Asia
The third component was capacity building in the Asian rice research
institutions, but in the more fundamental research institutions in Asia
as well, because it was in those more fundamental research institutions
that capacity to do molecular biology really existed. So, in places like
India, China, Thailand, and the Philippines, we tried to link the more
fundamental research programs with the rice research institutions within
those countries. That involved a lot of training and, during that 17-18-year period, the Foundation supported about 400 fellowships for Asian
scientists, many of whom went to advanced laboratories in the U.S., Europe,
Australia, and Japan, where we were funding the work on tool
development. Most of the actual work that led to important discoveries
was done by Asian scientists in a laboratory in the U.S. or somewhere
else. Since they were the “inventors” of the tools, they had
a real
sense of ownership. When they went back home, there was a real sense of
pride and desire to use those tools within their home countries and the
Foundation supported them when they went home.
Over time, the funds that were going into tool development
and into work on the traits shifted from the West—the U.S. and Europe—to
the Asian countries, particularly China, India, and Thailand, where they
began developing real capacity. By about 2000, when we would have
meetings of our rice biotechnology network, we had scientists from the
major companies working in biotechnology asking to come to those
meetings. We also had scientists from laboratories that we weren’t
supporting around the world asking to come to those meetings because
they would learn not only the most recent results in rice
biotechnology but also biotechnology in general from some of the Asian
programs that we were supporting. That’s when we realized that we had
achieved our goal, when the Asian scientists were at the forefront of
doing the research on tool development and working on the traits. We
recognized that we had accomplished our goal of making sure that the new
tools on molecular biology would be applied to rice and that was certainly
proven to be the case. We see Asian countries continuing to make major
advances in the development and application of rice biotechnology with
China and India, for example, now having as much capability as Monsanto or Syngenta or any of the
major corporations. So, that’s an overview of the Rice Biotechnology
Program.
The Golden Rice story What might be useful
now is to tell the story of one of those traits, which is Golden Rice, and then
maybe two stories about the tools, which would be the rice molecular map and
the rice sequence because it's
interesting to know how those came about as targets of the Foundation and
to look at the
process of how our grantees developed them.
So, let’s start with Golden Rice. The idea behind Golden
Rice actually originated at IRRI over at the guesthouse in the lounge
area. In April 1984, even before we had made a decision to focus on
rice, the Foundation sponsored a conference at IRRI, which was called the Intercenter Seminar on International
Agricultural Research Centers (IARCs) and Biotechnology.
The purpose of that conference was to bring together breeders from all
of the CGIAR centers and some of the
best scientists who were then at the forefront of developing
biotechnology—in 1984, still a very young field. We had about 200 people
at this conference.
One evening,
after the biotechnology presentations, a group of breeders from the
centers was sitting around in the lounge area at
the guesthouse having a few beers. Then, they started
talking about how unrealistic what they had heard during the day was.
Breeders, at that time, were quite skeptical about biotechnology. They
had seen a number of other technologies that were going to revolutionize
breeding or replace breeding, such as radiation breeding and somaclonal variation,
most of which never went much of anywhere. The other reason why the
breeders were a little bit skeptical was that the scientists who created
plant biotechnology, for the most part, were not breeders and not even
plant scientists. The people who created plant biotechnology mainly
came from microbiology, bacteriology, and virology backgrounds. It is
bacteria that allow one to manipulate DNA both from the standpoint of
just understanding sequences and how DNA is put together, but also as
far as genetically engineering crops is concerned. Agrobacteria are
nature’s tool for doing genetic engineering and so most of the people
who were at the forefront of the field were those working on
Agrobacteria. They had worked on molecular biology in microbes and were
now moving over to plants.
I have to
admit that they made some rather unrealistic speculations as to what the
technology was going to be able to do for breeding. We were going to be
able to put nitrogen fixation genes into rice, for example. Some of
these things we are actually thinking about doing today, but they were
talking about doing them back in 1984 and doing it in 2 or 3 years.
So, these breeders were sitting around, kind of joking and laughing about
how these biotechnologists were going to stick any gene into rice. Now,
I was at this conference, in part, to learn as much as I could and to
get ideas as to what the Foundation might invest in. So, I was sitting
there too and I asked, “Well what is your favorite gene then?” These
biotechnologists say they can stick any gene into rice and make it do
what they want it to do. “If you guys as breeders could do that, what
would be your favorite gene?” Neil Rutger, who was a
breeder at UC Davis at that time, took the lead and he asked each one in
the
group, “Yes, what’s your favorite gene?”
We went around and most of them were not surprising: “blast
resistance,” said one; “drought tolerance,” said another. Finally, we
got around to Pete Jennings [photo
left]. First, just a little bit of background on Pete Jennings. He was a
Rockefeller Foundation employee seconded initially to IRRI and then to
CIAT but was really a Rockefeller Foundation employee for 30 some years,
I think. He had been the first breeder at IRRI and made the initial
cross that led to IR8. He then left IRRI
after several years and went to CIAT in Colombia to develop most of the rice
varieties that are grown in Latin America today—or at least the breeding
lines that led to those varieties. So, Pete knew what he was talking
about and, while I was listening very intently to what he was going to
say, when he said “yellow endosperm,” it didn’t make any sense to me
because I didn’t know anything about why yellow endosperm would be an
attractive or desirable trait. I asked, “why?”. And I think some of the
other breeders there responded in the same way. Yellow endosperm? Pete
went on to explain that he recognized that Vitamin A deficiency was
a serious problem throughout Asia and particularly in rice-consuming
populations because there is no pro-Vitamin A or beta carotene in rice.
Children, when they are being weaned, are fed a gruel, which is made up
almost totally of rice, and therefore they often lack Vitamin A, thus
suffering the direct consequences of [possible blindness] and
susceptibility to diseases.
That made a lot of sense to me. When I went back to New
York, my job was to begin thinking about how we might put together
research programs to address each of these traits. Bob Herdt, when he
put his priorities together, found yellow endosperm very difficult to
put into his system because there was no "yield forgone." His method required that, so he tried to develop a way of
pricing what yellow endosperm might allow in the sense of not having to
provide supplementation and fortification programs. So, he was able to
build that into his priorities and it did become one of our priority
traits. [See Bob Herdt’s chapter, Research priorities for rice
biotechnology, in the 1991 book I edited with Gurdev Khush, Rice biotechnology.]
You need to realize that, at that particular time, the
technology was still in its infancy, so there was very little that we
were able to do immediately. I did go around to two of the leading
laboratories in the world—at Harvard University and Rockefeller University—that
worked on the molecular biology of chloroplasts because the beta
carotene is produced and used in the chloroplast. I thought those
laboratories might have an interest in working on what we were then
calling yellow endosperm rice. Both labs considered this an intriguing
idea, but, even though I was indirectly suggesting that the Rockefeller
Foundation would provide significant funding for a significant number of
years, they said they would not be interested in pursuing it because
they thought it was too difficult a task. It would mean engineering
the whole pathway and the protein enzymes that are produced for each
step in that pathway would have to be packaged in the chloroplast in
just the right way in order for the sequence of those reactions to take
place. At least, that was the argument that they presented for thinking
that this was basically too difficult to do at that stage
of the technology.
However, Lawrence Bogorad [photo
left] at the Harvard lab did say to me, “You know, what you really
ought to do is find out how maize accomplishes this because yellow maize
produces beta carotene in the endosperm and that’s a mutant.” Wild-type
maize is white and yellow maize is a mutant that produces beta carotene
in the endosperm for no good reason. The beta carotene is a
photosynthetic pigment. The endosperm is not a photosynthetic tissue--it’s being produced there, causing no harm to the plant, but doing a lot
of good for the people who eat the maize.
So, how could we find out what’s going on in maize. At that
particular time, Donald Robertson, a
geneticist at Iowa State University, had identified and worked on a “jumping
gene” that was called
Robertson’s mutator. He
had lines of yellow maize in which Robertson’s mutator had jumped into
the y1 locus. Y1 was the locus that determined whether you had yellow
maize or white maize. One of the tools that did exist at that time was
gene cloning by these jumping genes. So, we gave him a grant to clone
the y1 gene from maize and he, and I think everybody else,
thought that that gene was going to be a regulatory gene because it
controlled a whole pathway that involved four other enzymatic
steps. When they cloned it, it turned out that it was not a regulatory
gene but rather it was phytoene synthase, the
first enzyme in the 40-carbon path that leads to beta carotene. In the
beta carotene biosynthetic pathway, there are two 20-carbon compounds
that, when combined, form phytoene. Then, the phytoene goes through three
more enzymatic steps before it reaches beta carotene. So, the regulatory
mechanism in maize was the amount of phytoene synthase that existed in
the endosperm, which was very encouraging, because that led one to think
that maybe, if the gene for phytoene synthase is expressed in the rice
endosperm, the same results that occur in
maize would occur in rice.
We also funded a lab at the University of Liverpool
that showed that the 20-carbon precursors that are combined to form
phytoene were present in rice endosperm. So, the precursors were there
and the argument that we were willing to put forth was that if you added
the gene for phytoene synthase it would produce phytoene and that might
actually induce the other genes in the pathway, which appears to be what
happened in the case of maize.
The next step in the Golden Rice story was to put together
what Ingo Portrykus, the
scientist who was to lead all the breakthroughs with Golden Rice, called
a brainstorming session, which we just called a workshop [at the
Foundation’s New York headquarters] where we brought together about 20 scientists,
including two or three nutritionists who laid out the argument of what a
beta carotene-producing rice could accomplish; four or five of the
world’s leading carotenoid biochemists who knew all about the
biochemistry of that pathway that
led from the 20-carbon compounds to the beta carotene end product and
actually beyond beta carotene because, in some cases, the pathway does
go beyond beta carotene; and a group of scientists who were the most
advanced in rice genetic engineering. This was now about 1993 and,
through the Rockefeller Foundation Program, the tools for genetically
engineering rice had been developed. They were still somewhat
rudimentary, but you could genetically engineer rice. You could
introduce genes.
Two key persons whom we invited were Ingo Portrykus, [photo
above left] a gene jockey from the ETH [Eidgenössische
Technische Hochschule; the MIT of Europe] in
Zurich, Switzerland. He was one of the first people who was able to
genetically engineer rice. Also attending was Peter Beyer [photo below
right] from the University of Freiburg in
Germany, who
were one of the world’s leading carotenoid biochemists. Interestingly,
they did not know one another and they met on the airplane coming to
this workshop. They began talking and hit it off personally. When they
got to the workshop, they continued to have these conversations.
The result of that workshop was, first of all, a feeling on
the part of everybody there that this would be a challenging goal to
produce beta carotene in rice endosperm. But it's a doable goal. They came up
with two strategies [see International Program on Rice Biotechnology
Workshop Report: Potential for Carotenoid Biosynthesis in Rice
Endosperm, June 1993: Rockefeller Archive Center]. One strategy was to
simply introduce all four of the genes that were necessary to produce
the four enzymes in the pathway. The thinking at that time was that
they’d be introduced individually and then crossed in order to combine
them into a single variety.
The second strategy was to turn on the genes that already
exist in rice. Rice produces beta carotene. All green plants produce
beta carotene. It’s an essential photosynthetic pigment. In rice,
however, the genes were turned on in the green tissues but not in the
endosperm. We would try to come up with any strategy to turn on those
genes in the endosperm. I might add that, way back, one of the early
experiments we funded was to screen the gene bank at IRRI to see
if there was naturally occurring yellow endosperm rice but IRRI breeder
Gurdev Khush and his
colleagues were not able to find any materials like that.
In
October 1995, on the IRRI farm during the Foundation's Rice
Biotechnology Meeting held in conjunction with
Rice Genetics III, Dr. Toenniessen (3rd from left)
confers with (from left) Gurdev Khush,
IRRI rice breeder and principal scientist, 1967-2001; Ken Fischer,
IRRI deputy director for research, 1991-99; Darshan Brar,
IRRI rice breeder and currently head of the Plant Breeding,
Genetics, and Biotechnology Division (PBGB);
John O’Toole, IRRI agronomist and rice physiologist,
1974-84, and later Foundation associate director;
Zhikang Li, IRRI molecular geneticist and currently
coordinator of the International Network for Molecular Breeding
based in Beijing; Robert Herdt,
IRRI economist, 1973-83, head of the IRRI Economics Department,
1978-83; and later Foundation director, agricultural sciences, and
vice president; and Swapan
Datta,
IRRI senior scientist in PBGB, 1993-2005, and currently deputy
director general for Crop Science, Indian Council of Agricultural
Research.
So, we wound up funding both approaches. After that
workshop, we got a proposal from Ingo and Peter. They proposed putting
in the four genes. Then, we got a proposal from another team that was
going to study what is blocking this pathway in the endosperm of rice
and then try to overcome whatever that blockage was. They were difficult
research programs. I think Ingo had disappointing results at least three
times before he had his final breakthrough. I guess it wasn’t
disappointing, but one of the first things he did was to put in the gene
for phytoene synthase. The rice endosperm produced phytoene, but it
didn’t go any further than that. So, they then began trying to put in
the genes for the next step and it turned out that the gene for the
second step in plants is an extremely complex gene and an extremely
complex protein. They had a lot of trouble even trying to get that gene
expressed.
Going back to the 1993 workshop, we had invited a
Japanese scientist from Japan Tobacco who had
been working on a bacterial gene that was able to carry out two steps in
that pathway. Their interest was really in being able to use this as a
way of developing herbicide resistance. Lots of herbicides interfere
with the photosynthetic process and with compounds such as beta carotene,
which protect the photosynthetic process. At the workshop, he had shown
how this one bacterial gene, referred to as the crt1 gene, carried
out those pathways. So, Ingo asked him for that gene and he sent it.
Ingo then incorporated that gene, the phytoene synthase gene, and a
third gene as well in what he called one big experiment that added all
those genes to rice.
At just about the time that Ingo was going to retire from
ETH in 1999, the breakthrough occurred. Ingo produced the
transformations and sent them to Peter. As Peter was harvesting some of
the seed and polishing them, he noticed that they were yellow. He called
up Ingo and they had a celebration that night because they had achieved
the breakthrough that they were looking for.
I think all of us thought, at that time, that we were going
to be 2-3 years away from being able to have Golden Rice in the field.
Both Ingo and I and almost everybody in public sector work, at that
time, were pretty naïve about what was going to be required to actually
take one of these products to the field. We very quickly learned that
there were a number of constraints in addition to the technical
constraints. There were intellectual property rights.
It turns out that Ingo had probably utilized materials, tools, and
techniques that infringed on roughly 40 different patents or potentially
infringed on those patents.
Then there was also an increasingly burdensome regulatory
process that any transient crop had to go through in order, not only to
be commercialized but also just to do the research. To send transgenic
materials from one country to another country is extremely complex. The
way this was eventually sorted out was that Ingo and Peter took out a
patent on their discovery. They had no intention of making any money on
the patent or restricting anybody from using it. But, by taking out a
patent on their material, it gave them a bargaining chip to deal with
some of the other organizations who held the patents that they had
inadvertently infringed upon in doing their research.
That led to a relationship with what was then the Zeneca
Corporation, which was planning to commercialize crops that had
increased levels of beta carotene for a variety of different reasons,
some of them health reasons, some of them appearance reasons. Zeneca had
accumulated a portfolio of patents around that technology and they
agreed to cross-license. If they could have access to Ingo’s and Peter’s
patent, they would cross-license their patents and, in addition to that,
because this was a humanitarian project with the potential of benefiting
many people, they took the lead in getting licenses from other companies
and other groups that also were interested in seeing this particular
product move forward. In addition to that,
they began doing some research on rice themselves and that was fortunate
because, as I mentioned, Ingo was retiring and therefore he
wasn’t able to carry this
research forward himself. A couple of years after Zeneca began this
work, there was a number of mergers and the Zeneca Agricultural
Program wound up being part of
what is today Syngenta. Syngenta was
pursuing this research and
produced a number of yellow endosperm rice lines. They then decided, as
a result of one of those mergers I think, that the merged entity had too
many research programs, so they decided to bring this rice research
program to a close. They didn’t see this as a commercially competitive
line of research and so they agreed
to finish up what they were working on and share the material they had
with Ingo and Peter and the Humanitarian Board that
Ingo and Peter had created to advise them.
I want to go back a little bit and explain where the name
“Golden Rice” came from. Ingo first presented his results during the
last meeting of the Rockefeller Foundation’s Rice Biotechnology Network held in Phuket,
Thailand, in September 1999. It was one of several
important scientific breakthroughs that were presented at that meeting.
Following the meeting, Bob Herdt, John O’Toole, and I stayed on in
Bangkok. John was based in Bangkok and we needed to spend a couple of
days figuring out the next phases of the work that he was going to be
doing from that office. Anyway, we wound up having dinner one evening
with a friend of John’s, Mr. Mechai Viravaidya, Thailand's 'Condom
King'—so-called due to his
extensive work promoting accessible contraceptives over 30 years in
Thailand—and a former member of IRRI’s Board of Trustees [1995-2000,
photo left]. He distributed those condoms in very innovative
ways. He had colored condoms. He gave away condoms if you bought 10
liters of gasoline at the local gas station and the like. He made it
acceptable to be seen buying condoms and almost made it a treat. So, we
were having dinner with him and we’re telling him some of the
exciting results that had occurred at the meeting in Phuket and said to
him, “You know that one of these is the recent development of yellow
endosperm rice, which produces beta carotene." He immediately recognized
the importance of this because he’d been heading an NGO [Population
and Community Development Association] that had been
dealing with the vitamin A deficiency problems.
I can remember him saying, “You aggies do not understand
marketing. You don’t call this yellow endosperm rice. You call this
‘Golden’ Rice. You got to have a marketing campaign behind this. You got
to make it a treat to eat Golden Rice. It’s got to be better than white
rice.” So, we listened very intently and took his ideas. I can remember
going back and telling Ingo, “we got to start calling this Golden Rice.”
Ingo caught on immediately. That’s how the name Golden Rice originated.
To finish up the story, eventually Ingo and Peter were able
to reach an agreement with Syngenta where Syngenta provided materials
that had been developed and screened for what we call “events” ( lines
that have a very clearly defined introduced gene in them) that could
meet all regulatory approvals. They agreed to make those lines available
for the humanitarian work under a very detailed licensing agreement, but
basically one which would make this trait freely available to all
farmers who were making less than US$10,000 a year. Clearly, people who
were suffering from Vitamin A deficiency weren’t likely to be farmers
making more than $10,000 a year—so it's not really a very significant
constraint to using this product for humanitarian purposes.
The next step is to move that trait from the lines that were
developed at Syngenta into the lines that are important in the Vitamin
A-deficient region of Asian countries. So, just this past year, the
Rockefeller Foundation gave a $4 million dollar grant to IRRI that
allows IRRI to collaborate with India, Bangladesh, the Philippines,
Indonesia, and probably Vietnam to move the beta carotene production in
endosperm trait into the lines that are important in those countries.
Now, exciting results coming from IRRI and from some feeding
trials indicate that the lines we currently have will more than meet the
needs of the people to totally overcome vitamin A deficiency that they
currently suffer from. It’s a very exciting development. We’ve got a
great product and the effort now is to get it through the regulatory
approval process in each of those five countries. So, we’re at the stage
now where we’re confident that we can carry it through to actually grow
this product in the field.
Most likely, we will move forward first in the Philippines,
in part, because IRRI is there and so it’s much easier to move
transgenic materials back and forth between IRRI and PhilRice [Philippine Rice
Research Institute, the national program]. Every time you send
transgenic materials across international boundaries, you had to get
approval to do that. It can take up to 6 months just to get approvals to
send this material to India or to places like Bangladesh. So, the
projections for the Philippines are that it’ll probably be through the
regulatory process and be ready for release to farmers within 3 years. In
part, because IRRI has done a lot of work, so PhilRice doesn’t have to
start from scratch. A BC
3 population here at IRRI can now be given to PhilRice and they can begin producing a finished product in a relatively
short period of time and doing the field trials that are necessary to
obtain regulatory approval. Regarding consumer
acceptability, Golden Rice is a beautiful product. It looks like
saffron rice [at right in photo above compared with regular rice]. So, any
population that already has certain colors, turmeric, saffron, etc., I
think it’s going to be an attractive product. At the same
time, we don’t dismiss that this may well be a problem.
There’ll
probably be some need to convince people that this is a quality product
and one that actually has significantly added value. Going back to Mechai’s comment, we’ve got to make this a prize, not something that
people are going to think of as an inferior product in any way.
In addition, it may be wise to get this product to consumers
through the national feeding programs as well. In most of these
countries, the government already buys about 20-30% of the rice and uses
it in national feeding programs. It shouldn’t be too difficult to
convince governments that this is a very valuable product. Secondly,
most of these governments are already spending a lot of money on vitamin
A supplementation programs and this product, once it is produced, really
doesn’t have any significant cost associated with it because it self-replicates. So, in the case of Golden Rice, all the costs are up front
in producing the product. It’s not like supplementation where you’ve got
to pay for the supplementation every time you use it. I think
governments will find this attractive, nt only from the standpoint of its
potential positive impact on the health of the population but also just
from a financial standpoint. They will be able to meet the needs of
their people at much less cost and actually much more effectively than
the programs that they currently have. I think we can get governments
behind it and that they’ll help to promote both the attractiveness of
the product and its broader dissemination through some of these
government programs.
Most of the critics of Golden Rice are really critics of GMOs
[genetically
modified organisms]. They see Golden Rice as a threat
because it is a GMO that has the potential to benefit millions of people
and therefore it destroys their argument that this is just a technology
that is going to benefit big companies. They see it as a Trojan horse.
If they let Golden Rice through, which most of them realize would be a
good thing, then it turns loose all GMOs and so it’s a problem.
They’re going to continue to oppose Golden Rice, but I think
increasingly, particularly in Asia, governments and the public are
beginning to realize that GMOs are very useful products. If you just
look atBt
cotton in India, it has doubled cotton production
in India and significantly reduced pesticide use and all the other
problems associated with pesticides.
Governments are beginning to recognize this and, quite
frankly, they are also beginning to discount the arguments that are
being made by the opposition because the opposition was as opposed to
Bt cotton in India as it is to Golden Rice. The public and
governments look at what happened with Bt cotton and see all the
benefits coming with it. So, I think, you do see a diminishing opposition
to GMOs, particularly in Asia, not so much yet in Europe. Europeans have
huge food surpluses so they don’t need to worry so much about food
production and agricultural development as Asian countries do.
Developing a molecular map
for rice
As I mentioned at the beginning, one of the major areas that the
Foundation invested in was developing the tools of rice biotechnology.
There was no research being done in the early 1980s on rice molecular
biology. The scientific community didn’t even know what the size of the
rice genome was. There was one paper that had come out from a lab in
India that said that the rice genome was significantly smaller than the
maize genome and the wheat genome on which some work had been done in
the States. To be honest, most scientists didn’t believe it. “The
Indians made a mistake in doing that research” was kind of the scuttlebutt
that you heard at scientific meetings.
So, as
part of the tool development, we looked around for one of the best
laboratories in the world to begin developing a rice molecular map and
just doing research on the rice genome. We really owe thanks to Ronnie Coffman at Cornell
University who’s another IRRI alumnus [former plant breeder, 1971-81;
currently chair, Department of Plant Breeding
and Genetics, and director of International Programs, Cornell].
He had just hired Steve Tanksley [photo
right] to come to Cornell. Steve was one of the leading plant molecular
geneticists in the world at that time, working mainly on tomato. He had
not worked on rice at all, but Ronnie convinced him to work on rice and
said that he thought he could get the Rockefeller Foundation to fund
that work if he did and Steve was keenly interested, so we wound up
selecting Tanksley’s lab at Cornell as our major lab for work on the
rice genetic map, molecular markers, and other genome work.
The lead
PhD student that Steve Tanksley put on to this project was a mature
young woman, more mature than most PhD students, by the name of Susan McCouch [photo
right]. Susan basically led the development of the rice molecular map at
Cornell and that was her PhD dissertation in 1990.
During
the early to mid-1980s, I had been traveling around the world trying to
identify other laboratories that were also working in this area and
there was one other one and that was the Japanese National Program at
Tsukuba. The Japanese had created what was called Tsukuba Science City and
they were somewhat ahead of the rest of the world in creating these
centers of innovation, science-type cities. Tsukuba is today a place
where there are a number of national laboratories, including the
University of Tsukuba, and a number of corporate research laboratories.
The idea was that there would be synergy between the public sector and
the private sector.
So, the
Japanese were investing in the development of their own molecular
genetic map of rice and I said [the Foundation] would be interested in
providing funding that would help do that as well, but the condition was
that they had to share all this material with the rest of the rice
research community. Well, the Japanese did not buy that argument because
they were entering into these public-private partnerships with companies
that were also located in the Tsukuba area and so the agreement was that
research results that came out of the public sector laboratories in
Tsukuba would be licensed to the private sector companies and private
sector labs that were also located there. Anyway, we wound up not
providing any funding for Tsukuba and they wound up not sharing their
molecular map.
One of
our first meetings of the Rice Biotechnology Network was held in
conjunction with one of the major rice genetics symposia [Rice
Genetics II—Second International Rice Genetics Symposium, 14-18 May 1990].
Our meeting took place at IRRI and then we all moved to Manila for the
big symposium. Before that symposium, [about a year previously in 1988]
Tanksley’s group had published its molecular map in TAG (Theoretical
and Applied Genetics: Molecular mapping of rice chromosomes,76:815-829). The paper [authorship] had come out
with McCouch, about five other names, and then Tanksley, the way that
most U.S. papers come out with students that do the work [listed first]
and then the lead professor’s name at the end. In Asia, at least at that
time, it wasn’t usually the way the names came out on a paper; usually
the lead professor’s name was first and then, the other people's listed next.
Anyway, that paper came out in TAG and the Cornell group had basically
scooped the Japanese group because they had not yet published their
genetic map. I didn’t realize it at that time, but the Japanese really
took that as almost an insult because rice genetics was their field and
here was this upstart group in the U.S. that published the first rice
molecular genetic map and, at this meeting here in Manila [Rice Genetics
II], the Tanksley map was going to
be presented by Susan McCouch.
I don’t
know if you know Susan, but she is a very attractive, tall woman. At
that time, her hair went almost all the way down her back. This
particular Rice Genetics Symposium was really dominated by the Japanese
because they were doing most of the work, so, of the about 400 people in
the audience, [it looked like] 300 were probably Japanese. I’m sure the
Japanese thought that the McCouch who appeared on this paper was a
white-haired head professor at Cornell University. I can still see the
moderator, the person who was running the session, inviting Dr. McCouch
to come up and give this presentation of the paper that had already
appeared and scooped the Japanese. Susan McCouch stood up and began
walking up. You could just hear this murmur. They just couldn’t believe
that this young, attractive woman had scooped them. Not only had they
been scooped, but they had been scooped by a woman. That set off
what actually turned out to be a very constructive competition with the
Japanese. They reinvigorated their efforts to get their map done and
published.
The
other thing about the competition that became interesting is that the
purpose of our grant to Cornell was to get that rice genetic map
developed and then to get it disseminated so that other people could use
and further develop it. So, we sent about 20 Asian scientists to work
with Susan and Steve. In fact, when Susan graduated [in 1990], we sent
her to IRRI. She spent about, I think, 3 years or so at IRRI basically
transferring the technology to the Institute. She and Steve had students
from throughout Asia to learn the technology and take it back [home],
despite the fact that, by now, the Japanese had made a major effort.
They had invested much more than we were investing. They actually had a
much better map with many more markers—what you get if you invest
three or four
times as much.
But
nobody outside Japan was using it because the Cornell map was being made
freely available to everybody. Students were going back and forth from
other countries and even when the Japanese then changed their policy and
said, "okay we’re going to make this freely available," it was too late
because everybody had already made a commitment to the Cornell map.
There
was then a change in attitude in the Japanese program. We invited them
and they started coming to the RF meetings. Then, we started sending
students to work at Tsukuba as well. Those students were able to begin
developing their own work based on both the Cornell map and the Japanese
map. Finally, we were able to get the two groups together to combine
their maps into a single map and make it into a much more powerful tool.
The same
Japanese group then went on to making an even larger commitment to
sequencing the rice genome. There you’re talking about 10’s of millions
of dollars being required to sequence the rice genome. We didn’t have
those kinds of resources, but we were able to encourage the Japanese to
develop an international consortium that would work on the rice genome
sequencing. Dr. Takuji Sasaki was then in charge of the Japanese program
and he was very supportive of this idea, having this international
consortium that involved the Indians, the Chinese, the Thais, and the
Koreans [and the International Rice Genome Sequencing Project
(IRGSP)was born in 1997]. We provided just a little
bit of money that allowed that consortium to have meetings and to send
people back and forth. We also provided a consultant, Dr. Ben Burr, a maize
geneticist [with the Department of Biology Brookhaven National
Laboratory Upton, NY], who had been at the forefront of developing
similar work on maize. He knew all of the strategies that you needed to
apply to a collaborative program on the sequencing of a plant genome. So, he
was a key adviser to that process.
But,
even that effort began to get into problems of various types. One was
that, it turned out, unbeknownst to anybody who was working on the public
rice genome sequencing program, that both Monsanto and Syngenta were independently funding major sequencing projects for rice. Syngenta wound up
publishing [in
the journal Science] a very preliminary rice
sequence [on 5 April 2002]. The Chinese [the Beijing Genomics Institute
(BGI)] also published a sequence in the same issue of Science.
[Click the cover to view all of the coverage of this event at the time.]
This
caused a big problem in Japan because, once again, they thought they’d
been scooped by somebody else. They had put all of this effort into
developing the rice sequence and Syngenta [and BPI] published first. The
biggest problem was that the Japanese funding agency said, “Well, if it
is already done, why should we continue funding this?”
In fact,
the Syngenta sequence was really a rudimentary sequence and had a lot of
gaps still in it and a lot of problems with it. The Monsanto sequence
also had all those problems. The Chinese BGI sequence had even more
problems than the ones from Syngenta and Monsanto. On the other hand,
the international consortium sequence was a detailed one with no gaps,
no overlaps, and all information extremely well documented and readily available.
But the
Japanese financial people were threatening to pull the plug on the whole
project before it was finished. It was about 80% finished. So, Ben Burr
organized a meeting at the Rockefeller Foundation in New York. Dr.
Sasaki came from Japan, the Chinese scientist who had led the work in
China came, and representatives of Monsanto [Gerard
Barry, now with IRRI] and Syngenta came.
I must
say it took some very creative negotiating on the part of our then
president Dr. Gordon Conway [photo
left] to get all of those four groups to eventually agree that they were
going to share information with one another in order to allow the
international effort to move forward and to publish and to put online a very accurate, very detailed
genome of rice that would be available for everybody
to use. And that did happen after about 2 years. In part, because of
that, we learned that the rice genome was actually the smallest genome of
all the cereals, so the Indians were right all along. Because it is a
small genome, because the sequence was publicly available, and because
all of these other tools that had been developed under the Rockefeller
Program were also freely available, rice became a model crop, the model
plant for doing plant molecular biology or certainly cereal molecular
biology.
I had a
number of people tell me that when they would apply to, say NSF [National
Science Foundation], in the United States to do
fundamental research, they were going to do it on rice. But they
couldn’t say “rice” because reviewers would say, “This is not
fundamental.” So, they would say a “model crop” instead. To this day, if
you’re going to do cereal molecular biology research, rice is the crop
that you most likely will be doing it on.
An
interesting sideline to all this is that, way back when the Foundation
was getting started in the Rice Biotechnology Program, when I said I
went around to all those laboratories, of the laboratories that I wound
up not being able to convince to work on rice, there were three that I
really wanted to work on rice: the Plant Breeding Institute in Cambridge,
England; the Commonwealth Scientific and Industrial
Research Organisation, (CSIRO), Australia; and
the University of Minnesota in the U.S.
All three of those laboratories had a combination of a very strong plant
molecular biology program combined with a breeding program—that was
quite rare at that time [early 1980s]. But they were committed to other
crops. I can remember that the group at the University of Minnesota was
obviously committed to maize and they wanted us to submit a proposal to
work on rice and the dean basically canned it. He said, “We can’t be
working on rice in Minnesota.” I got the same reaction from PBI in
Cambridge and CSIRO. They basically said, “You know we can’t add rice or
our farmers are going to be totally upset if we are not working on
crops that are important to them.
Today,
if you go to any of those laboratories, they’re working on rice because
it’s a “model crop” and they can accomplish things faster working on
rice and then applying it to wheat or maize. So, rice has really become
a model crop for cereal research in large part because of the nature of
rice being the smallest genome. But I think increasingly because with
rice, everything was shared. With all those other crops, which are
important commercially in the United States and Europe, a lot of the
sharing that used to take place really no longer does take place,
whereas, with rice, it still does.
C4—another maize connection to rice research One of the guiding principles
that we had for making investment in the rice biotechnology program was
a belief that, if nature had done it already, we ought
to be able to figure out a way to do it in rice. You go back to beta
carotene: nature had “figured out” how to produce beta carotene in
the maize
endosperm without causing any yield loss or any deleterious effect. Lots
of times with a mutation, there’s something negative that comes along
with it as well. In the case of yellow maize, the only phenotypic change
is simply the color of the endosperm. So my feeling was, if nature had
already achieved this in maize, we could do it on rice—and we did.
We can apply that same analogy to C4 [the
more efficient four-atom photosynthetic activity in maize],
which evolved from C3 [the less efficient three-atom photosynthetic activity
found in rice]. There was an early grass predecessor that both rice and
maize evolved from. Somewhere along in the evolutionary process, nature
“figured out” how to introduce a C4 pathway to improve photosynthetic
efficiency in maize. Well, if it can be achieved in nature, we ought to
be able to, first of all, learn how nature did it and then accomplish
the same thing in rice without any of the deleterious consequences. If
we can understand how the genes that control C4 photosynthesis function,
we may be able to device a way to transfer them to rice. And, if we do, we
may be able to develop a rice plant that can produce 50% more grain than
the best present-day varieties.
Another area where we actually have invested some funding
that IRRI has worked on is apomixis [reproduction
without meiosis or formation of gametes]. Again, nature has figured out
how to evolve apomixes in certain plants. Well, if nature can do that, I
think we can introduce apomixis into rice as well, which would be a
great trait for breeding, for seed production, and for stabilizing
varieties, especially hybrid rice varieties.
IRRI—one of Rockefeller’s great success stories
In my opinion, IRRI
is one of the Rockefeller Foundation’s great success stories. The whole
idea for IRRI came out of the Foundation. It was based on what Norman Borlaug had
accomplished with wheat. The thinking was if you could breed for wheat
in Mexico and have those varieties adopted over vast areas of South
Asia, maybe you could breed for rice in a single location and have those
varieties or at least those breeding lines be used across vast areas of
Asia where rice is grown. So, the Rockefeller Foundation got the Ford Foundation to
partner with it to create the International Rice Research Institute.
Within 3 or 4 years, the first variety, IR8, was
coming out and had a huge impact here in the Philippines and even
greater impact through South Asia and other regions.
The Green Revolution that
took place in South Asia was a revolution for a number of reasons. One
was because you have these vast irrigated areas that were underperforming
and so a new variety that performed well under those irrigated
conditions, semidwarf wheat
initially, and then rice, were kind of catalysts that allowed centuries
of previous investment to be realized.
The
other thing was that the initial development of the wheat varieties
occurred in Mexico and were already commercialized in Mexico; and the
rice varieties initially developed in the Philippines were
commercialized in the Philippines first. So, once the decision was made
by India and Pakistan—at that time, Pakistan included
Bangladesh—they were able to go to Mexico and the Philippines and buy
shiploads of seeds. Commercially produced rice and wheat in those
countries were
purchased as seed, not as grain. So they didn’t have to go through the
normal process of bulking up.
If
those varieties had been developed in India, at least 5-6 years would
have been required to disseminate, bulk up, and get seed out to farmers.
But, because they were already commercialized in Mexico and the
Philippines, they could just buy hundreds of tons—shiploads—of seed and
bring them in and disseminate them very quickly. So, within a 2-3-year
period, these varieties spread rapidly across India and Pakistan, doubling and tripling yields. The farmers were clamoring to get
hold of them and the governments realized that they were able to
overcome what had threatened to be a huge famine in that region. So, you
really did have a revolution. You had a change in the way rice and wheat
were grown in those regions in just a very short period of time, 2-3
years, and there were rapid increases in grain production.
Founding
of the Asia Rice Foundation
The Asia Rice Foundation was
really an idea that came from Kwanchai Gomez [IRRI head statistician, 1968-93;
liaison officer for coordination and planning, 1993-96; and consultant, 1997-98;photo left]. She had
discussions with Bob Herdt, who was, as
mentioned previously, an economist at IRRI during 1973-83 and had worked
with the Rockefeller Foundation, and John O’Toole who had been at IRRI
as well during 1974-84 and then with the Rockefeller Foundation. During
1988-95, Klaus Lampe was the
director general of IRRI and Klaus, like DGs today, was looking for ways
to increase funding for IRRI. He was thinking about trying to attract
funding from wealthy Asians, so he encouraged Kwanchai to go out and to
think about creating an Asia Rice Foundation.
I’m sure Lampe’s thinking was that this would be a way of
funding IRRI. What Kwanchai was really more interested in was the loss
that was occurring of the culture that existed in Asia around rice,
around the planting of rice, around the harvest of rice, around the
cooking and preparation of rice, and around the consumption of rice. She saw
rice as an integral part of the cultures of Asia. As Asia modernized
and its people became busier and lost some of their contacts in the
villages, she saw a lot of these cultural things diminishing. So, she
saw Asia Rice Foundation as a way of preserving and capturing more of
those cultural aspects.
Bob Herdt and John O’Toole bought in to her concept, I
think, more strongly than they bought in to the idea that Lampe had. I
don’t think they thought that it was very realistic that they were going
to be able to attract the level of funding that would actually help
support IRRI. But you probably could attract funding at levels that
would be sufficient to do some of the things that Kwanchai wanted to do.
Cultural aspects wouldn’t take as much money and that, in fact, might be
more attractive to some of the potential donors. So, the Asia Rice
Foundation was created. Kwanchai was put in charge of it and it did
indeed do a lot of really good things related to cultural and
educational aspects.
One other thing she did discover quite quickly was that most
Asian donors/funders, both government and private, weren’t really
prepared to fund an international or even a regional effort that was
international. If it was a Thai donor, they wanted to protect Thai rice
culture. If it was a Filipino source of funding, they would want to
protect Filipino culture around rice. So, I think she actually wound up
creating sub-foundations, such as the Philippine Rice Foundation, the
Thai Rice Foundation, etc., as a way of attracting support. These are
important lessons for IRRI as its newly created Development Office is
currently embarking on a major effort to attract funding support for
IRRI from Asian philanthropists.
Bringing
the Green Revolution to Africa When that team of advisors
made two recommendations to the Foundation (in the early 1980s), one was
to apply molecular biology to tropical crops; the other
was to do something about Africa. I was the interim,
initial president of the Alliance for a Green Revolution in Africa
(AGRA) in 2006 when it was first set up while we
were trying to hire the Africans who are today leading that effort. The
Alliance for a Green Revolution in Africa builds on the Rockefeller Foundation’s program in Africa
over the past two decades.
It was really Bob Herdt, when he became the director of the
Foundation’s agricultural program, who initially helped get our African
program started. When I became director, I shifted significant resources
to Africa. We had a program that had three components that were very
similar to those used in Asia: 1) to develop new varieties that could
provide a catalyst for increased production, 2) to improve soil
fertility, and 3) to create markets so that when farmers did increase
production, they made a profit (otherwise, they would invest in the new
technologies).
In the case of Asia, those three components were heavily
implemented by governments. In Africa, the governments were much weaker
and the donors were no longer willing to fund the governments to try to
implement these programs. So, in many ways, we had to find alternatives
to government in order to conduct those research programs and those
market development initiatives.
The other big difference was the lack of irrigated land in
Africa. As I said before, those new varieties that led to the Green
Revolution in Asia were varieties of rice and wheat that were targeted
to irrigated areas. Asia already had, at the beginning of the Green
Revolution, about 86 million hectares of irrigated land. So, there was a
vast area in Asia of irrigated land that was underperforming and you
could come along with the new variety, provide a little bit of
fertilizer subsidized by governments, and double and triple yields.
In Africa, there’s less than 5 million hectares of irrigated
land—most of that in South Africa held by commercial farmers. The
small-scale farms are rainfed meaning that you’re not going to be able
to develop a single variety at a place like IRRI and then send it around
to national programs throughout the region and have that variety work
under irrigated conditions in vast areas. You may remember rice variety
IR36. I think at one time
in the early 1980s, it was planted on over 11 million hectares in many
different countries, all under irrigated conditions. Any single variety
developed in Africa is going to be well suited for only one little
niche. So, the basic strategy in Africa has to be quite different from
the strategy in Asia.
You have to do what is called niche breeding. We need a lot of
breeders working on a lot of different crops. There’s no equivalent of
rice in Asia in Africa. Even maize, the most important crop, provides
maybe only 30-40% of the calories. Any crop has to be well adapted to
both local soil and environmental conditions. There are places in
western Kenya where as you go down in altitude toward Lake Victoria, you go
from a region that requires maize varieties that mature in 180 days to a
region 50 km away that requires maize varieties that mature in 110 days.
We really need to have a much more localized and diversified
breeding program in Africa and, quite frankly, it’s a greater challenge
and we’re not going to have these breakthroughs where you double and
triple yields in a few years. You’re going to see new varieties that add
40-50-60 percent and do it in a cumulative way so that, eventually, yields
might be doubled.
Africa today still uses very little fertilizer. So we have to
find ways of getting fertilizer to farmers without the kind of massive
government funding that was provided to many of the Asian countries.
It’s interesting that the term “Green Revolution” was coined by William S. Gaud, a USAID
director, who had visited Asia in 1967-68, about the time the Green
Revolution was really taking off. He came back and was giving a
presentation at some big meeting in Washington about this agricultural
revolution that was under way in Asia. He called it a “Green” revolution
and, in that speech, he committed US$300 million in subsidies for
fertilizer to continue that process. Well, that US$300 million in 1967
is around a billion dollars today. No donor organizations are committing
a billion dollars to provide fertilizer to African farmers today. We are
in a situation where we need to find ways that use markets to provide
the fertilizer, and certainly at a lower cost than it is currently being
provided. There are a lot of opportunities to improve the efficiency of
fertilizer delivery and use once it is delivered in Africa. But it’s a
challenge.
Challenges for IRRI today The biggest challenge for IRRI
today is that many of the national programs that it is assisting are
also becoming very strong. So, even PhilRice (Philippine
Rice Research Institute) today has a
biotechnology program that’s almost comparable with the program at IRRI.
If you get into China, IRRI can’t compete with biotechnology programs
there just because of the numbers of scientists that they have and their
ability to do things on a grand scale, not that the quality of science
at IRRI is not as good.
IRRI needs to really find its niche in Asian situations, in
which the national programs are now quite capable as well. I think there
really is a niche for IRRI. It’s doing those kinds of things that can be
shared across all of the rice research institutions in Asia or worldwide
and that wouldn’t likely be done by a national program or, if they were,
that they wouldn’t get shared. IRRI needs to be a coordinator, a source
of knowledge and information, and continually a source of breeding
lines, which have traits that have been generated through advanced
science done throughout the world that no single national program can
probably access.
The new SUB1 lines that
have submergence tolerance are a good example. The initial real work on
that was done at the University of California,
Davis. Not only was the
technology transferred, but the person who did the work, David Mackill
[photo left], was
transferred as well from California to IRRI. And so, the next phase in
that process was done at IRRI and all submergence-tolerant materials are
now being shared with the national programs. I really do think there’s
an important role for IRRI to be the conduit by which and through which
the best science in the world gets applied to rice research and then
shared with the national programs in Asia.