AGBIOVIEW SPECIAL ON GM MAIZE: King Corn; No.1
Crop by 2020; Bt Maize;
Protecting a Center of Origin; Erroneous ETC Statements; Corn in Mexico
Today's AgBioView 'Special on GM
Maize'
From http://www.agbioworld.org
: November 7, 2003
* Amaizing
* GM Maize Could Push Crop to World No.1 By 2020
* Global Review of Transgenic Crops: 2002;
* Feature: Bt Maize
* Mexican Maize and GM Corn: Protecting a Center of Origin
* Are GM Crops A Threat To Biological Diversity?
* .. No Threat So Far ... Aren't The Greatest Threat
* Mexican Maize Resource Library from AgBioWorld.org
* CIMMYT Director General Responds to Erroneous ETC Statements
* The CIMMYT Maize Program and Transgenic Maize
* National Corn Growers Association
* Biotech and Genetic Diversity - Corn in Mexico
--
Amaizing
- The Economist, Nov. 6, 2003 http://www.economist.com
'Genetic modification works'
Finicky consumers in the rich world, particularly
in Europe, may be rejecting genetically modified crops, but a report by
the International Service for the Acquisition of Agri-biotech Applications
( ISAAA ), a not-for-profit organisation based in Ithaca, New York state,
suggests that many poor countries are embracing them enthusiastically.
The report examines the take-up of Maize that has had the gene for a natural
insecticide produced by a bacterium called Bacillus thuringiensis , or
Bt , engineered into it.
At the moment, according to the ISAAA , 9% of
the world's Maize crop is lost to insect pests. That loss costs $5.7 billion,
while a further $550m is spent on insecticide. The organisation reckons
the widespread deployment of Bt Maize could halve both figures. It reports
that trials of the modified crop raised yields by up to 23% in China,
by up to 24% in Brazil, and by up to 41% in the Philippines. Gains in
countries where Bt Maize is already planted commercially, such as America,
Argentina, South Africa and Spain, range from 5% to 10%.
One of the principal uses of Maize is to make
animal feed, and the ISAAA expects the Maize harvest to outstrip those
of wheat and rice by 2020, as meat consumption in many currently poor
countries rises along with incomes. Genetic modification should help to
increase the economic impact of that shift, while reducing its environmental
impact.
**********
GM Maize Could Push Crop to World No.1 By 2020
Agbiotechnet, Nov. 6, 2003. http://www.agbiotechnet.com/
Adoption of GM Maize could push Maize ahead of
wheat and rice to become the world's most important crop by 2020, according
to a new report. International Service for the Acquisition of Agri- biotech
Applications says that GM Maize is currently accounting for an additional
35 million metric tons, more than 5% globally.
ISAAA says that rising incomes in the developing
regions of Asia and Latin America are triggering a shift to more meat
consumption, which will cause a dramatic increase in demand for corn-
based animal feeds.
Bt Maize, containing an endotoxin from Bacillus
thuringiensis that protects plants from insect pests such as corn borers
could cut in half the estimated 9% loss of the global Maize harvest to
insect pests. Adoption of Bt Maize could make food and feed safer by minimizing
insect damage that causes the incidence of harmful mycotoxins, says ISAAA,
and could cut pesticide spraying by up to half, or 5,000 metric tons.
"Bt corn offers a unique opportunity to provide
developing countries with safer and more affordable food and feed, which
can make a major contribution in alleviating the hunger and malnutrition
that claim 24,000 lives a day in Asia, Africa and Latin America,"
said Clive James, chair of ISAAA and author of the report, " Global
Review of Commercialized Transgenic Crops: 2002 Feature: Bt Maize ."
The report said average yield gains for Bt Maize
over traditional varieties were an average of 5% higher in the United
States, 6% higher in Spain, and about 10% higher in Argentina and South
Africa. In Spain, the only country in the European Union to grow a significant
area of the biotech crop, growers realized gains of 170 euros per hectare
due to increased productivity and insecticide savings.
In field trials, Bt Maize yields were 24% higher
in Brazil, up to 41% higher in the Philippines, and between 9 and 23%
higher in China. Second-generation biotech Maize -- such as the newly
approved variety in Canada and the United States that wards off rootworm
-- will produce even more gains with $1 billion in annual benefits to
the United States alone.
The report also noted that developing countries
will consume 80% of the additional Maize needed by 2020, with the lion's
share of this increased production being grown by developing world farmers,
who make up 98% of the world's 200 million Maize farmers.
"This is a daunting challenge for developing
world farmers, many of them small and resource poor," said James.
"The fact that biotechnology incorporates beneficial traits into
the seed makes these crops a very appropriate tool for small farmers,
as witnessed by the 5 million small farmers in Asia, Latin America and
Africa who have already adopted Bt cotton."
The first year of experience for farmers in the
Philippines, the first country in Asia to approve a biotech food crop
for commercial planting, illustrates why.
"My previous harvest of traditional corn
was 80 sacks of corn kernels per hectare," said Rafael Sarmiento,
who farms 1.3 hectares near General Santos City in the Philippines. "With
Bt corn, I now harvest close to 132 sacks of corn kernels per hectare."
In fact, the report said increased yields from Bt corn production were
able to meet the subsistence requirements of a family of five in the Philippines,
while conventional corn could not.
Carlos Andico, who farms 2 hectares nearby, added,
"I earn big with Bt corn because I only spend for fertilizers and
do not need to spray. I could have lived comfortably much earlier if Bt
corn was introduced years ago."
In addition to the yield gains, increased farmer
incomes and reduced pesticide spraying, the report said, "There is
now clear evidence that food and feed products from Bt corn are often
safer than the corresponding products from conventional corn because of
lower levels of the mycotoxin fumonisin."
Fumonisin is produced when insects burrow into
the corn stalks and kernels, allowing fungi to enter and produce harmful
mold. While mycotoxin levels are closely monitored in the industrial world,
they are not monitored in many developing countries in the tropics where
the threat from fungal infection is greatest.
"Minimizing insect damage through Bt corn
has significantly reduced concentrations of fumonisin in food and feed,"
James said. "This is a major benefit in developing countries where
levels of the harmful mold are higher in food and feed and where corn
is directly used as food by a significant portion of the population."
In 2002, Bt Maize accounted for approximately
7% of the global Maize area -- about 10 million hectares. The study projects
adoption of Bt Maize could be extended to between 28 and 32% of the global
Maize area -- 40 to 45 million hectares. Wider adoption and benefits could
be made available from five second-generation Bt Maize varieties expected
to be commercialized in the next three years, ISAAA said.
***********
Global Review of Commercialized Transgenic Crops:
2002; Feature: Bt Maize
- Clive James, Executive Summary of ISAAA Briefs
29, Nov. 4, 2003
Full Report at http://www.isaaa.org/kc/CBTNews/ISAAA_PR/briefs29print.htm
Growth in GM Crop Area * In 2002, the global area
of GM crops was 58.7 million hectares or 145 million acres, grown in sixteen
countries by 6 million farmers, of whom 5 million were small resource-poor
farmers in developing countries. GM crop area has grown 35 fold between
1996 and 2002 – one of the highest rates of adoption of any technology
in agriculture. The US was the largest grower of GM crops (68%), followed
by Argentina (23%) Canada (6%) and China (4%) with the balance grown by
the other 12 countries. Three countries India, Colombia, and Honduras
grew GM crops for the first time in 2002.
* The principal GM crops continued to be soybean,
Maize, cotton and canola. On a global basis 51% of the 72 million hectares
of soybean was GM, 20% of the 34 million hectares of cotton, 9% of the
140 million hectares of Maize and 12% of the 25 million hectares of canola.
Herbicide tolerance continued to be the most dominant trait occupying
75% of the GM global area in 2002, followed by insect resistance (17%)
and the stacked genes of herbicide tolerance and insect resistance, occupying
8%.
* In the first seven years of GM crop commercialization,
1996 to 2002, a cumulative total of over 235 million hectares of GM crops
were planted globally which met the expectations of millions of small
and large farmers in both industrial and developing countries. GM crops
delivered significant agronomic, environmental health and social benefits
to farmers and to global society, and contributed to a more sustainable
agriculture.
* Global GM crop area is expected to continue
to grow in 2003.
Value of the Global Transgenic Seed Market in
2002 * The value of the global transgenic seed market is based on the
sale price of transgenic seed plus any technology fees that apply. The
value in 2002 was $4.0 billion, up from $3.7 billion in 2001.
Global R&D Expenditures in Crop Biotechnology
* Global R&D expenditure in the private and public sectors is $4.4
billion with over 95% of the total in the industrial countries, led by
the US. China is the leading investor in R&D crop biotechnology in
the developing countries, followed by India.
GM Crops and the Commercial Seed Industry * GM
crops represent approximately 13% of the $30 billion global commercial
seed market in 2001.
Feature: Bt Maize
The feature on Bt Maize is devoted to: * Assessing
the performance to-date of the first generation of Bt Maize with the cry1Ab
gene on a global basis over the last seven years * Evaluating the future
potential of cry1Ab and other Bt or novel genes that confer resistance
to the major caterpillar/moths (Lepidoptera), particularly the economically
important stem borer complex * A preliminary assessment of new genes for
the control of the corn rootworm complex (Coleoptera/beetles), an important
pest in the Americas which has also been detected in 13 countries in Europe
The principal aim is to present a consolidated
set of data that will facilitate a knowledge-based discussion of the potential
benefits and risks that Bt Maize offers global society. The topics presented
include: * the Maize crop and its origins; * global distribution of Maize
in developing and industrial countries, by area, production, consumption,
imports, and exports as well as projections of future Maize demand in
2020; * definition of the areas sown to hybrids, open pollinated varieties
and farmer-saved seed; * estimates of the number of Maize farmers worldwide,
by principal country, and average size of Maize holdings;
* Maize production systems, germplasm development
and Maize utilization; * an overview of the insect pests of Maize as well
as the crop losses they cause, including the cost of control, and an analysis
of the $550 million global Maize insecticide market and a gains from Bt
Maize; * deployment of the cry1Ab gene in Bt Maize, its global adoption
and assessment of benefits; * a preview of the second generation genes
which include the genes cry3Bb1 and cry1Fa2, first commercialized in the
US in 2003, and five other gene products that are in development and expected
to be launched within the next three years;
* a review of Insect Resistance Management, the
potential effect of Bt Maize on the environment and the food and safety
aspects of Bt Maize, including the important topic of mycotoxins and the
advantage that Bt Maize offers with lower levels of the mycotoxin fumonisin
in terms of food and feed safety, particularly in developing countries;
* a brief overview of trade issues as they relate to Bt Maize in the USA
and the EU; * concluding with an assessment of the global potential of
Bt Maize, as a safe and sustainable technology that has the capacity to
make a critical contribution to global food and feed security, more specifically
to the unprecedented demand for approximately 850 million tons of Maize
in 2020, 60% of which will be consumed in developing countries which will
have the formidable challenge of having to produce most of their Maize
demands in their own countries with imports supplying only around 10%
or less;.
The Maize Crop Approximately 75 countries in both
the industrial and developing world, each grow at least 100,000 hectares
of Maize; the total of 140 million hectares produces 600 million MT of
Maize grain per year, valued at $65 billion annually, based on the 2003
international price of $108/MT. Developing countries plant two-thirds
of the global Maize area, and industrial countries one-third. The top
five producers of Maize are the US 229 million MT, China 124 m MT, Brazil
35.5 m MT, Mexico 19 m MT and France 16 m MT. Of the top 25 Maize countries
in the world 8 are industrial and 17 are developing countries including
9 from Africa, 5 from Asia and 3 from Latin America.
There are approx. 200 million Maize farmers worldwide,
98% of whom farm in developing countries; 75% of Maize farmers are in
Asia (105 million in China alone), between 15 and 20% in Africa and 5%
in Latin America. Two thirds of the Maize seed sold globally is hybrid
and only 20 % is farmer-saved seed. In fact, hybrids are the predominant
seed type in many of the principal developing countries which have a seed
distribution system already in place for providing Bt Maize to farmers;
for example 84% of the 105 million Chinese Maize farmers buy hybrid seed,
and 81% of all Maize seed used in Eastern and Southern Africa is hybrid.
Maize insect pests and the value of crop losses
The lepidopteran pests, particularly the stem borer complex, are a major
constraint to increased productivity, and are of economic importance in
most Maize-growing countries throughout the world. Just under half (46%)
of the Maize area in the 25 key Maize-growing countries have medium (40%
area infested in temperate areas) to high levels (60% area infested in
tropics/subtropics) of infestation with lepidopteran pests. Corn rootworm
infests 20 million hectares in the Americas, requiring more insecticide
than any other pest in the US, with losses and control measures in the
US costing $1 billion per annum. The global losses due to all insect pests
is 9%, equivalent to 52 million MT of Maize, valued at $5.7 billion annually
and consuming insecticide valued at $550 million. Losses associated with
lepidopteran pests, that can be controlled by cry1Ab, are estimated to
cause losses of 4.5%, equivalent to half the total losses from insect
pests of Maize.
Potential global benefits of Bt Maize Bt Maize
has proved to be a safe and effective product. Having undergone rigorous
testing for food and feed safety, it has provided environmentally friendly
and effective control of targeted pests, and the resistance is still durable
after seven years of deployment on 43 million hectares. It is the first
Bt Maize product widely commercialized with proactively implemented, science-based
insect resistant management strategies featuring refugia (areas planted
to non-Bt Maize) combined with high dose technology. Global deployment
of the cry1Ab gene in Bt Maize has the potential to increase Maize production
by up to 35 million MT valued at $3.7 billion per year; yield gains due
to Bt Maize are estimated at 5% in the temperate Maize growing areas and
10% in the tropical areas, where there are more and overlapping generations
of pests leading to higher infestations and losses. From a global perspective
the potential for Bt Maize in the near to mid-term is substantial. There
are several reasons for this:
* Firstly, the cry1Ab gene has provided effective
control of several of the primary pests of Maize, principally the stem
borers, and intermediate control for other caterpillar pests including
armyworm and earworm. The successful performance of Bt Maize (cry1Ab)
has resulted in its rapid adoption on 43 million hectares in seven countries,
since its introduction in 1996.
* Secondly, new Bt products are already being
launched including the cry3Bb1 gene for corn rootworm control in the US
in 2003 and the cry1Fa2 gene that provides effective control of pests
controlled by cry1Ab with enhanced control of fall armyworm and black
cutworm. In addition there are five new Bt and novel gene products that
are anticipated for launch in the next three years that will provide the
necessary diversity in modes of action to allow even more effective control
of a broader range of the principal insect pests of Maize.
* Thirdly, in addition to the significant advantages
that Bt Maize offers as a pest management tool, the product offers safer
feed and food products than conventional Maize with lower levels of harmful
mycotoxins, an increasingly important attribute as food and feed safety
is assigned higher priority. Of the three major staples, Maize, wheat
and rice, to-date Maize is the only one that offers the significant benefits
of commercialized biotechnology. Bt Maize now offers an increasing range
of options to meet the very diverse needs of the environments in which
Maize is grown.
Farmers assign Bt Maize high value because it
is a convenient and cost effective technology that allows them to manage
risk in an uncertain environment and offers insurance against devastating
crop losses in years when pest infestations are unusually high. For example,
benefits from using Bt to control corn rootworm in the US alone, where
it infests 13 million hectares, are projected at $460 million annually
of which farmers would gain two-thirds and technology developers one-third.
Producer gains of $289 million would be associated with increased yields,
lower production costs and a significant decrease (2,300 MT a.i, or more)
in insecticide use, which is currently the highest for any pest in the
US. Global deployment of Bt or novel genes to control the principal lepidopteran
pests of Maize as well as corn rootworm has the potential to substitute
up to 40 to 50% of the current 10,700 MT (a.i) of insecticides applied
to Maize globally, valued at approximately $550 million annually; this
has significant environmental implications..
Challenges and Opportunities
The potential yield gains of up to 35 million
MT, attainable from the first generation of Bt Maize (cry1Ab), with more
gains to come from the second generation of Bt Maize and novel gene technology,
represent a challenge and an opportunity to contribute to feed and food
security in 2020, when, for the first time ever, Maize demand will exceed
the demands for wheat and rice. The challenge is to produce an additional
266 million MT globally to meet an unprecedented global demand totaling
approximately 850 million MT of Maize by 2020, fuelled by more demand
for meat by a more affluent global society. The 35 million MT potential
gain from Bt Maize amounts to almost a 15% contribution to the additional
266 million MT needed by 2020.
Of the additional 266 million tons required globally
in 2020, 80%, or 213 million MT, will be required by developing countries
and the formidable challenge for them is to optimize domestic production
to meet most of their own additional needs, with imports expected to continue
to provide only around 10%. It is projected that Bt Maize has the technological
potential to deliver benefits on 40 to 45 million hectares in the near
to mid term compared with the 10 million hectares it occupies today. This
should be an incentive for major Maize consuming developing countries,
such as China and Brazil, to approve and adopt Bt Maize because of the
significant and multiple benefits it offers, including less risks associated
with food and feed security.
The major constraints are the lack of regulatory
capacity in many developing countries, with acceptance, and trade issues
being equally important, especially relative to the market influence of
the European Union. Bt Maize is likely to continue to experience high
growth rates in the near-term in the traditional markets of the US, Canada,
Argentina, South Africa, Spain, Philippines and Honduras. Subject to regulatory
approval and acceptance, Asia offers significant new opportunities particularly
in China and in India, Indonesia, and Thailand. Other important markets
include Brazil and Mexico in Latin America and Egypt, Kenya, and Nigeria
on the African continent.
Acceptance will be the major factor governing
approval and adoption in Eastern European countries such as Romania and
Hungary, which are EU accession countries. In Western Europe, France,
Italy and Germany have much to gain from the technology, but political
considerations related to acceptance have continued to result in rejection
of the technology except in Spain where Bt Maize has been a success, occupying
10% of the national Maize area in 2003, having doubled from 5% in 2002.
Bt Maize is a proven safe and effective technology
that has the potential to deliver benefits on 25 million hectares through
hybrid systems in temperate mega-environments, amongst which China offers
the most important opportunity. In the tropical environments with a potential
of 18 million hectares of Bt Maize through hybrid systems, the most important
opportunity is in Brazil.
Bt Maize offers a unique opportunity and an incentive
for major Maize consuming developing countries to approve and adopt Bt
Maize and benefit from the multiple and significant benefits it offers
in terms of a safer and more affordable food and feed, which can coincidentally
make a major contribution to food and feed security and to the alleviation
of hunger and malnutrition which claims 24,000 lives a day in the developing
countries of Asia, Africa and Latin America.
************************
Mexican Maize and GM Corn: Protecting a Center
of Origin
- Pew AgBiotech, http://pewagbiotech.org/buzz/display.php3?StoryID=111
When scientists reported two years ago that genes
from genetically modified corn may have been found in native Mexican corn
species, it made headlines around the world - for a few days.
Not so in Mexico. In a nation where corn – or
Maize – was originally bred from a wild plant some 7,000 years ago and
where both civilization and culture are intertwined with this crop, the
possibility that genes from GM corn could have an impact on the immense
variety of Mexican Maize has remained a highly visible and charged issue.
"Maize is one of the great factors for development
of culture for this country," says Juan Manuel Hernández, a Mexican
agronomist from the University Autónoma Agraria Antonio Narro, speaking
at a two-day Mexico City workshop on gene flow hosted by the U.S.-Mexico
Foundation for Science (FUMEC) and the Pew Initiative on Food and Biotechnology
in late September.
Without doubt, Maize plays a pivotal role in Mexico
and Mexican culture. What may be less obvious is how important Mexican
Maize is to the rest of the world, because Mexico is the crop's "center
of origin."
As a center of origin, Mexico is a source of enormous
genetic diversity. Mexico has a tremendous array of Maize - some 59 races,
each with a large number of sub-varieties, said Rafael Ortega Paczka,
research coordinator at the University Autónoma Chapingo and member of
the Mexican Society of Plant Breeding. Unlike the limited number of varieties
of corn that appear in U.S. or European grocery stores, Mexican Maize
comes in all colors, sizes, shapes, and textures with a variety of uses
and flavors. What's more, it is bred to grow in very specific places:
from mountains where the weather is wet and cool to the hot, drought-prone
valleys, and everywhere in between. The tremendous natural genetic diversity
of Maize is important to the world because it allows breeders to develop
new Maize varieties with traits that make it easier for farmers to grow.
In addition to these landraces, Mexico also is
home to a wild grass called teosinte, the plant from which Maize was originally
bred and developed thousands of years ago. There is at least a theoretical
concern that GM corn could cross-pollinate with teosinte, introducing
the corn's "transgenes" (genes from one organism inserted into
another organism) into the wild teosinte population, according to evolutionary
biologist Peter Tiffin of the University of Minnesota.
The possibility for cross-pollination of native
and agricultural varieties – also known as "gene flow" – is
not unique to GM corn. The concern is that introducing modern corn varieties,
including GM varieties, into the center of origin could reduce the genetic
diversity of Maize. Should modern varieties crossbreed with native Maize,
the resulting hybrids may prove to be highly competitive and could displace
some native varieties. As a result, breeders could lose some genes from
the native land races that may be important later.
Because of general anxieties about agricultural
biotechnology, concerns about gene flow from GM corn receive significant
attention and nowhere more so than in Mexico. "This is the central
issue in many parts of the world, but especially in Mexico because it
is the center of origin [of Maize]," said Exequiel Ezcurra, president
of Mexico's National Institute of Ecology.
Even so, GM corn isn't the only, or necessarily
the major, threat to Maize diversity. For example, general agricultural
has significant effects on the environment. "Agriculture is bad for
biodiversity," say Peter Raven, director of the Missouri Botanical
Garden and board chairman for the American Association for the Advancement
of Science.
"Maize is an incredibly diverse crop,"
says Tiffin. It's also one that has become completely dependent on humans
because it cannot disperse its own seeds. "If humans were to stop
planting it, it would cease to exist." Therein lays the crux of the
Mexican Maize matter: "The great part of the diversity is in the
hands of the farmers," says Hernández.
In addition, Paczka point out that "Many
races (of Maize) are being lost because of the losses in tradition."
Those traditions are being lost because younger people are emigrating
to the U.S. or urban areas in Mexico. "Young people, women and men,
leave not because they don't like Mexico, but because they don't like
poverty," says Daniela Soleri, who studies culture of crop management
practices in Mexico at the University of California, Santa Barbara.
Some argue that GM corn could in fact help alleviate
the economic problems associated with migration and the resultant cultural
loss which threaten Maize, says Robert Horsch, vice president of product
and technology cooperation at Monsanto, a producer of GM Maize. "Biotech
actually [could] have benefits to small farmers in Mexico." In the
Philippines, Horsch notes, small farmers using GM corn have increased
yields 30 percent and reduced their costs by 20 percent. "These are
very substantial, real benefits from the first year of introduction."
Horsch expresses concern that many times a great
deal of energy is spent fighting over the wrong problem. For instance,
while people were up in arms about the possible effects of GM corn on
monarch butterflies in the U.S., logging was underway in Mexico that was
dramatically reducing the wintertime habitat for those very same butterflies.
"The irony was that the concern for a possible risk could have prevented
solving an actual threat to habitat."
There would be consequences for Mexico's economic
future if it does not allow GM crops, says Victor Villalobos, coordinator
of international affairs for Mexico's Secretary of Agriculture, Livestock
and Rural Development. If Mexico must become more competitive in the international
market, it also needs to improve the standard of living for farmers, protect
natural resources and, develop a better regulatory framework and better
technology for rural farmers, he says. "It's clear that Mexico cannot
keep itself on the margin of benefits offered by biotechnology and genetic
engineering."
Raven agrees that GM technology could provide
significant benefits for Mexico. For example, one way to reduce the impact
of agriculture on biodiversity is to use current farmland more effectively
and employ fewer pesticides, he says. GM crops can help intensify production
and stop the spread of agriculture to marginal, sensitive lands, says
Raven. "It's a matter of record that GM crops have reduced the use
of pesticides."
Luis Herrera Estrella, Director of CINVESTAV (Centro
de Investigación y Estudios Avanzados del Instituto Politécnico Nacional
de México) agrees. According to Dr. Estrella, in order for Mexico to reap
the benefits of GM technology while minimizing the risks, research must
be completed to understand what happens when transgenic varieties are
planted in a center of origin. He further notes that the research hasn't
taken place in large part because of the moratorium on planting GM corn
in Mexico.
In order to get the best answers from any research
conducted, University of California, Santa Barbara's Daniela Soleri notes,
the small farmer must be involved. "In farmers' households all aspects
of corn are part of life," she says. "Corn is not bought and
eaten, but it is planted, grown, harvested and processed to make food.
[It is] eaten, stored, used for ceremonies and seed is shared with neighbors
and family. That's different from the industrial model we all live with.
Our goal is to bring farmers [points of view] into the policy discussion."
Regardless of the science or policy of the matter,
however, there is no magic bullet that's going to solve Mexico's Maize
controversy. That's because it's a cultural - not scientific - matter,
says Bill Lambrecht, Washington, D.C.-based correspondent for the St.
Louis Post-Dispatch and author of Dinner at the New Gene Café .
"Food is a cultural issue," says Lambrecht.
"The notion was overlooked by many people who started GM." Working
through cultural issues is a formidable task, he notes, recalling Charles
DeGaulle's response to the question of how to govern France, "How
can you govern a country with 300 kinds of cheese?'"
****************
Are GM Crops A Threat To Biological Diversity?
'No Threat... So Far'
- Klaus Ammann, Director, Botanical Garden of
the University of Berne, Chairman of the Biodiversity Section of the European
Federation of Biotechnology http://pewagbiotech.org/buzz/display.php3?StoryID=112
"I have written a 60-page report with thousands
of references on this question and I have not found a single instance
where there was a detrimental effect," says University of Bern's
Klaus Ammann. "But that doesn't mean it will always be that way."
As Ammann sees it, one of the problems with determining
whether GM crops will be detrimental to biological diversity is the fact
that scientists doing the studies are still trying to find the best method
to address the question. He notes ecologists are not really trained or
experienced in crop systems. And, those systems are very different than
studying wild ecosystems.
"One of the real troubles with ecologists
is that they work in habitats. Then they go to an agricultural field and
they [don't understand that system]," Ammann says. "Even then
you see that it's not a real field study. But the work is getting better.
We know much better what we are doing in the field than 20 years ago."
"There are literally dozens of field studies
being done right at this moment," Ammann says. "The early U.S.
field studies were sloppy. They were lucky and saw only benefits. But
we don't have any real long-term studies."
However, the work today will lead to the type
of information that will help scientists determine how GM crops affect
biological diversity. Until then, Ammann notes some important information
does exist. First, he notes, "It's a myth that an escaped transgene
can't be taken back. They trickle away."
Ammann points out single genes don't often persist
through the generations because a gene that is inserted in a plant often
has a cost to that plant that exceeds any benefits the gene confers to
the plant, such as herbicide resistance. He also notes that better molecular
biology techniques will allow for the detection of very minute levels
of genetic flow of transgenes. Ammann points out that these methods could
be used to argue for or against the introduction of GMOs into different
areas.
However, Ammann notes that the discussion of the
effect of transgenes on biological diversity may be addressing a very
minute issue associated with biological diversity. "A bigger threat
(to biodiversity) is agriculture itself," he says. "Nothing
reduces biodiversity like an agricultural field."
**********
'GM Crops Aren't The Greatest Threat to Biological
Diversity'
- Major Goodman, Professor, College of Agriculture
& Life Science, North Carolina State University Corn Breeder and Expert
on the Maize Genome, http://pewagbiotech.org/buzz/display.php3?StoryID=112
An expert in corn, Major Goodman has two important
questions when considering whether GM corn is a significant threat to
Maize diversity: Are GMO genes themselves any different from any other
genes? And, will GM Maize have any effect on Maize in Mexico? To the first
question he argues, "In general, they are not."
"I'm a plant breeder. I work with 10,000
to 20,000 genes at a time [when making conventional hybrids]," he
points out. In fact when breeding corn the traditional way by crossing
[mating] different varieties, he says. "I have no idea what these
genes are. These are very wide crosses. I strongly suspect that this is
more a threat to the status quo than a single [transgene]."
Yet, mankind has been doing just that for at least
10,000 years since the advent of agriculture and the birth of civilization.
Otherwise, "we wouldn't be here today," he points out. Goodman
is far less sanguine when considering whether GM Maize will affect Mexican
Maize. "It might," he says.
"Scientifically-improved [hybrid] corn has
been around in Mexico since at least the mid or early 1930's. Yet this
has had remarkably little effect on Maize in Mexico. That's because only
large farmers use most scientifically improved corn," he notes. And,
those farmers are in Jalisco, Chiapas and northern Mexican states. "But
much of Mexico's corn farming is rain-fed, rain-limited and in the mid
to high-elevation regions."
These are the products of very ancient breeding
programs by local small farmers. They are generally isolated from the
scientifically improved varieties and don't even "flower" at
the same time – so they have a hard time crossing.
What's more, he says, "Hybrids work well
when you have a large area to grow and market them in." In contrast,
they are poor performers in Oaxaca, the Maize Center of Origin, because
there are too many microclimates and virtually no irrigation. That means
the small farmers are better off using locally-bred corn that is adapted
to, for instance, resist fungus in wet highlands, or endure drought conditions
in the lowlands.
"I have no doubt that GMOs have reached Mexico."
But it's doubtful there is any effect on the indigenous Maize. Even if
a hybrid appeared, they tend to do well in the first generation and that
vigor quickly degrades by the second and third generations. "The
odds of a transgene surviving are not very good." That's not to say
Goodman believes Mexican Maize is thriving. He notes, "I'd say there
is a big threat from U.S. trade policy."
A U.S. farmer invests about five minutes per bushel
of corn. Mexican farmers may invest more than 24 hours per bushel. That
difference in efficiency, plus the corn subsidies in the U.S. and NAFTA,
are driving the small farmers out of business – and the ancient Maize
races (hence Maize biodiversity) are disappearing as well. This is especially
true since Maize can not grow without human intervention.
Goodman notes the survival of the Mexican farmer
and the demographic changes associated with corn cultivation are much
bigger threats than GMOs. He believes Mexican national germplasm banks
need better funding because they are non-funded at the moment. In addition,
U.S. germplasm banks need help as well. "That would certainly be
the first response," Goodman notes. "In the long run it's very
much in mankind's best interest to see that these genes are preserved."
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Mexican Maize Resource Library from AgBioWorld.org
http://www.agbioworld.org/biotech_info/articles/mexMaizeresource.html
AgBioWorld presents a brief library of resource
documents of relevance to the Mexican Maize issue.
**********************************************
CIMMYT Director General Responds to Erroneous
ETC Statements
- Masa Iwanaga, Director General, CIMMYT (Mexico),
Oct. 22 2003 http://www.cimmyt.org/whatiscimmyt/Transgenic/erroneousETC_22Oct03.htm
On 9 and 10 October 2003, the ETC group issued
two press releases reporting that studies in which they participated had
identified transgenes in Maize varieties grown in farmers’ fields in nine
Mexican states. CIMMYT welcomes the new information on this issue. However,
we regret that ETC ventured beyond reporting the implications of their
findings and restated their erroneous accusations about CIMMYT’s activities
with respect to transgenic Maize in Mexico, especially the maintenance
of CIMMYT’s Maize genebank.
ETC’s press release, "Maize Rage in Mexico,"
charges that “there is no plan to protect vital national and international
collections of crop germplasm stored in Mexico and elsewhere.” To the
extent that this accusation is made towards CIMMYT, which is the custodian
of a large international collection of Maize genetic resources in Mexico,
it is completely and obviously false.
ETC should know this. CIMMYT has publicly explained
how it is dealing with this situation each time the group has issued a
press release making this accusation. CIMMYT has communicated directly
with staff of ETC about this issue as well.
This statement recapitulates CIMMYT’s position.
We cannot, however, speak for the Mexican government or for any of the
other governments with which we work (we work with about 100 countries).
Nor are we empowered to take the kinds of steps that a government might
take and that some groups apparently demand of us.
CIMMYT’s actions with respect to transgenic Maize
in Mexico date back to long before gene flow between genetically modified
crops and landraces were subjects of debate--years before the ETC group
first raised the issue with respect to Mexico. The chronology of actions
that CIMMYT has taken is repeated below.
1. In 1995, when others were silent on this issue,
CIMMYT, the Mexican National Institute of Forestry, Agriculture, and Livestock
Research, and the Mexican National Agricultural Biosafety Committee began
to express their concern at a jointly convened workshop on "Gene
Flow Among Maize Landraces, Improved Maize Varieties, and Teosinte: Implications
for Transgenic Maize." Proceedings of this workshop were published
in early 1997.
2. On 4 October 2001, CIMMYT issued a statement
on the news brief in Nature (Vol. 413) which had just reported that transgenic
Maize was growing in the Mexican states of Oaxaca and Puebla. We stated:
“The International Maize and Wheat Improvement Center (CIMMYT)…regards
this as a serious development and offers its considerable expertise to
the appropriate Mexican institutions to (1) help identify the type and
source of the introduced gene(s), (2) assess potential impacts to biodiversity,
the ecology, and the socioeconomic environment, and (3) to explore possible
responses." We stand by that statement.
3. On 16 October 2001, CIMMYT posted results of
its initial tests on Maize landraces stored in its genebank. Those tests
found no traces of transgenes. We took further action: we decided not
to distribute Maize accessions from CIMMYT’s genebank unless they were
collected before transgenic Maize was commercially released anywhere in
the world. CIMMYT took these precautions rapidly, prior to the publication
of the scientific study on this topic by Quist and Chapela (Nature Vol.
414, 29 November 2001).
4. Since then, CIMMYT has continued tests to ensure
the absence of transgenes in Maize genetic resources stored in its genebank.
In September 2002, we implemented new procedures at CIMMYT’s research
stations in Mexico to reduce the possibility that transgenes could enter
Maize breeding materials or accessions being regenerated for the genebank
(see "The CIMMYT Maize Program and Transgenic Maize" ). These
precautions are essential, because each year more than 20,000 packages
of seed (ranging from a few grams to half a kilogram) arrive at CIMMYT
from our partners throughout the world. CIMMYT also ships more than 45,000
packages of seed from its genebank and breeding programs to other countries.
5. Thanks to rapid action and funding from the
Rockefeller Foundation, in late 2002 CIMMYT initiated research focusing
expressly on “the determinants and consequences of gene flow in Maize
landraces and implications for the livelihoods of Mexican farmers."
It builds on earlier research by CIMMYT and the Institut de Recherche
pour le Developpement, France. Landraces and farming systems in three
broad Maize-growing environments (highlands, lowlands, and the middle
elevations) are being studied in 20 municipalities in the states of Mexico,
Tlaxcala, Puebla, Hidalgo, and Veracruz. Maize races.
It is precisely this kind of research that is
needed to move the debate (in Mexico and the world) beyond the facile,
qualitative, and subjective assumptions that are currently made (e.g.,
that gene flow is either inherently “contaminating” or “improving”). It
will provide the basis for scientifically informed assessments and decisions.
We would hope that governments and civil society organizations alike would
recognize that such scientific contributions are useful and in keeping
with CIMMYT’s capacity and expertise. Our hope is that these contributions
will lead to constructive policies that address the very special issues
raised by the presence of transgenic Maize in a center of diversity.
6. The next step is to complement the protective
measures in use at CIMMYT with routine, large-scale testing of seed that
comes in and out of CIMMYT. On 6 and 7 October 2003, CIMMYT charged a
group of its scientists and external experts from universities, government
agencies, and advanced research institutes in Mexico, Canada, Switzerland,
and the USA to recommend a cost-effective, large-scale, efficient protocol
to identify transgenes at internationally accepted standards. Outcomes
of this workshop (“Technical Issues Related to Sampling and Detection
of Adventitious Transgenic DNA Sequences") are reported on our website.
The protocol will be reviewed by management and
will be validated for two crop seasons and revised if necessary. Such
a protocol for screening breeding and genebank materials at CIMMYT may
well serve as a model for similar institutions around the world. It should
be of concern to the international community that this costly testing
has not yet been supported by dedicated funding from any of the countries
(developed or developing) or civil society organizations whose constituencies
appear to value it.
7. Far from being silent on the topic, CIMMYT
scientists over the years have regularly advocated the need for careful
research and scientifically informed action in relation to transgenic
Maize in Mexico, even when such work literally “goes against the grain”
of powerful industrial and political interests. We have published articles
in international scientific journals, given numerous conference presentations
and seminars, and have conducted more than 50 interviews with local and
international media. We will continue to engage the media and stakeholders
in the scientific community in the future.
ETC and its associates charge in their October
press releases that CIMMYT’s failure “to take action on the contamination
of traditional Maize is deplorable,” and they go on to call for “a specific
strategy and procedure to ensure that genebank accessions are protected
from contamination.” In both instances, as the information above clearly
shows, they are wrong.
The question then arises whether ETC’s attacks
are born of ignorance or an intentional disregard for the facts. We trust
it is the former. We would welcome the technical and financial support
of ETC should they choose to help us in this vital work. Along with constructive
action, we welcome constructive dialogue: communication through press
releases has its limitations.
In an average year, CIMMYT provides genetic resources,
including products of its breeding research, to about 80 countries, a
strong testament to the value that governments and farmers place on CIMMYT’s
work. CIMMYT’s mission is to act as a catalyst and leader in a global
Maize and wheat innovation network that serves the poor in developing
countries. By drawing on strong science and effective partnerships, we
create, share, and use knowledge and technology to increase food security,
improve the productivity and profitability of farming systems, and sustain
natural resources—including genetic resources. We intend to remain faithful
to this mission and invite all who share such goals to join with us in
the work needed to bring them to fruition.
*********
The CIMMYT Maize Program and Transgenic Maize
http://www.cimmyt.org/whatiscimmyt/Transgenic/MaizeProg_handling.htm
The controversy surrounding transgenic (or, genetically
modified-GM) Maize continues. Since Mexico is center of origin of Maize,
the government does not permit the planting of transgenic Maize, because
of the possible impact on Maize genetic diversity. CIMMYT's response to
this issue must be careful and scientific, since some of the questions
related to transgenic Maize do not yet have satisfactory answers. In that
spirit:
1. We endorse the value and potential benefits
of GM Maize for people and the environment. However, we believe that any
decision on transgenic Maize in a country is that of the country. CIMMYT
can work with countries that choose to use the technology, by providing
training, scientific information, and information on intellectual property
and biosafety policy and procedures.
2. More research is needed on the genetic consequences
of transgenes for Maize diversity, especially on issues relating to expression,
fitness, and selection pressure.
3. To ensure confidence in and public acceptance
of studies on biosafety and diversity, in relation to GM Maize, we recommend
that such studies be conducted by or in collaboration with reputable public
institutions.
4. Given that Mexico is the center of origin for
Maize and that seed from private companies may contain transgenes, CIMMYT
will not grow germplasm from private companies on its Mexican experiment
stations and will not distribute the seed in our trials as checks.
5. Private sector germplasm may be used at CIMMYT
outreach sites, if done carefully and only when essential. CIMMYT trials
distributed in Africa, South America, and Asia, and not grown in Mexico,
may include private sector hybrids as checks, provided the source company
furnishes a written statement to the effect that the hybrid (s) contain
no transgenes, to the best of their knowledge. If the company cannot provide
such a statement and the CIMMYT scientist must use a private sector hybrid,
the scientist must first justify the need to the Maize Program Director
and have the germplasm analyzed and certified as transgene-free by an
independent service provider recommended by the CIMMYT Applied Biotechnology
Center.
6. For germplasm held in or considered for introduction
into the collections of the CIMMYT Maize germplasm bank, the following
procedures will be followed:
* Test for the presence of transgenes using existing
kits and tools, before introducing new seed in the gene bank as designated
materials. * Sow a 5-meter wide buffer of non-GM Maize around germplasm
regeneration blocks, to trap pollen from non-germplasm bank materials.
* All regenerations will be conducted using strict hand-pollination.
7. CIMMYT will continue to put emphasis on collecting,
regenerating, and preserving local landraces, and assisting farmers who
continue to grow them, as the primary mechanism for conserving and enhancing
diversity.
**********************************************
Biotechnology - National Corn Growers Association
http://www.ncga.com/
The development of biotechnology offers great
promise for corn growers through improved efficiencies and potential profits
when managed wisely and with regulatory oversight based on sound science.
However, the proliferation of biotech corn is straining current systems
of price discovery, consumer information, health regulation and trade
management.
Widespread acceptance of biotechnology depends
on better methods of informing consumers and better management by biotechnology
providers, producers, suppliers, and grain merchandisers.
For NCGA's Complete Position on Biotechnology,
choose the following link at http://www.ncga.com/biotechnology/main/index.html
**********************************************
Biotechnology and Genetic Diversity - Corn in
Mexico
- Full report at http://www.whybiotech.com/index.asp?id=1814
'Experts say risks and benefits of biotechnology
must be weighed on a case-by-case basis.'
Could plant biotechnology affect wild ecosystems?
Critics fear a genetically enhanced gene could
"escape" from a farmer's field and breed with a wild relative
to create a "superweed" that could overwhelm the natural environment
and curtail genetic diversity. Proponents, on the other hand, say the
productivity gains of genetically enhanced crops allow more food to grow
on existing farmland, which preserves natural areas from being plowed
under to feed a growing population. This, supporters say, promotes genetic
diversity.
Researchers increasingly say the question is no
longer whether a genetically enhanced gene, or transgene, will "escape."
Pollen flow between plants is a natural phenomenon that has been occurring
for thousands of years. <cut>
Corn in Mexico: Corn, or Maize, is a cornerstone
of society in Mexico, widely considered the birthplace of corn. So news
in a September 2001 issue of Nature, a respected science journal, that
traces of biotech corn had been discovered in farms field in Oaxaca created
widespread concern. Nature later disavowed its original article, and several
researchers say biotech corn will not have a negative impact on traditional
varieties.
"There is no scientific basis for believing
that out-crossing from biotech crops could endanger Maize biodiversity,"
said Luis Herrera-Estrella, director of the Mexico-based Center for Research
and Advanced Studies, which is known by its Mexican acronym, CINVESTAV.
"Gene flow between commercial and natural varieties is a natural
process that has been occurring for many decades."
Some genetically engineered traits, such as built-in
pest resistance, could fold into traditional crop varieties and may help
them survive better, he said. Others will die out if they don't provide
a recognizable benefit to farmers or consumers.
The real threat to genetic diversity in Mexico,
say many researchers, is the exodus of small farmers who are leaving their
small plots in Mexico for more lucrative jobs in the cities of Mexico
and the United States. Since corn requires human intervention to thrive,
unique varieties are being lost when the plots are abandoned.
"The most important consideration in the
loss of diversity has to do with the fact that farmers are simply abandoning
farming," Mauricio Bellon, of the International Center for the Improvement
of Wheat and Maize (CIMMYT), told National Public Radio in December 2001.
Increasing genetic diversity The exodus of rural
farmers to cities is occurring at a rapid pace around the world -- not
just in Mexico. So the genetic diversity of more crops than corn is at
stake.
At the same time, a growing world population,
coupled with increased urbanization and higher incomes, is creating a
greater demand for food. The United Nations predicts that the global population
will increase to 8.9 billion by 2050 -- a 40 percent increase over the
6.3 billion people on Earth today.
By helping farmers produce greater yields, biotechnology
can play a part in making farms of all sizes more viable, which in turn
could help reduce the pressure on remaining wilderness areas.
Currently, about 38 percent of the Earth's land
area is cropland or pasture. To keep pace with growing food demand, the
increase in natural land converted to cropland or pasture has been about
0.3 percent -- about the size of Greece or Nicaragua -- every year.18
By one estimate, an additional 4 billion acres of arable land will need
to come under the plow by 2050 if there are no increases in farm productivity.
That's more than twice the size of the continental United States (about
3 million square miles).
Experts fear that in the coming decades, half
of the world's remaining 6 billion acres of forests will be lost to agricultural
expansion.19 If forests continue to disappear at the current rate, as
many as 20 percent of all tropical forest species of plants and animals
could become extinct in 30 years.
An August 2002 United Nations report predicted
that agricultural and urban expansion will threaten biodiversity on 72
percent of the global land area by 2032. The "World Atlas of Biodiversity:
Earth's Living Resources for the 21st Century" report said that as
much as 48 percent of these areas will become converted to agricultural
land, plantations and urban areas, compared with 22 percent today.
"By slowing the rate at which natural habitats
are destroyed, GM crops and other technologies that increase agricultural
productivity can help to preserve natural biodiversity," said Ammann
of the University of Bern.
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