A question of scale
The Future Harvest Centres spend less than 2% of their overall
budget on genetic manipulation. Even if that could be trebled or
quadrupled, it would not buy much because research on GMOs is
expensive. But the CGIAR’s modest investment in GMOs can help
with certain specific projects aimed squarely at the poor
smallholders who have always benefited most from the work of the
Centres.
The private sector is generally not
investing in crop improvement for the poor. The Future Harvest
Centres will continue to do so, and while the Centres maintain
an interest in biotechnologies, there is no immediate prospect
of GMOs replacing research on conventionally bred varieties.
These have always been the Centres’ strength, with spectacular
results. About 55 million hectares of land in developing
countries are now sown to bread wheats developed by CIMMYT using
conventional breeding techniques. These wheats underpin four
fifths of production and have increased the grain harvest by 1.1
million tonnes a year.
|

International Plant Genetic resources
Institute
Via dei Tre Denari, 472/a
00057 Maccarese
(Fiumicino)
Rome, Italy
Tel: (+39) 0661181
Fax: (+39) 0661979661
Email: ipgri@cgiar.org
www.ipgri.cgiar.org

www.futureharvest.org
IPGRI is
a Future Harvest Centre supported by the Consultative Group on
International Agricultural Research (CGIAR)
|
Biotechnology encompasses a huge range of activities,
from the most ancient leavening of bread by micro-organisms to as yet
un-dreamed of medical possibilities. Each has its own set of risks and
opportunities. This paper is concerned with just one biotechnology: genetically
modified organisms or GMOs. All GMOs require biotechnology, but not all
biotechnology results in GMOs.
Genetically modified organisms (sometimes also called
GEOs—genetically engineered organisms or LMOs—living modified organisms) are
living things in which the inherited genetic recipe has been directly altered.
At some stage in the genetically modified organism’s life or ancestry,
scientists physically added one or more new genes. If those genes came from a different
species the resulting GMO is called transgenic.
It is direct manipulation of the genes that defines a
GMO. Plant breeders took 18 years of conventional breeding to produce an
ornamental pink-flowered strawberry (Fragaria)
by crossing with a different species, Potentilla.
The pink-flowered variety is widely available, and even though it contains
genes from a different species, it is not a GMO or a transgenic because it was
produced by conventional breeding.
Genetic manipulation can make plant and animal
breeding more efficient in several ways. For example, a breeder will make a
cross between two parents in order to combine the good qualities of both
parents into one, even better, offspring. A productive wheat variety may be
susceptible to some disease while another variety, of generally poor quality,
nevertheless has resistance to the disease. Crossing the two will add the
resistance gene to some of the offspring, but inevitably other genes, which
diminish overall quality, will also pass to the offspring. Many more
generations of breeding will be needed to eliminate those bad qualities. If the
genes that confer disease resistance can be isolated from one parent and
introduced directly into the other it can eliminate several years of delay.
Another advantage of direct manipulation is that it
gives the breeder access to a wider range of genes to work with. A desired
characteristic—for example tolerance to drought or salinity—may not be
available in the target species or its close relatives. If those genes are
present in another species, they can be placed in the target species and thus
improve its performance in a particular agricultural context.
Finally, direct manipulation may be the only option
that avoids an indeterminate wait for nature to provide the improvements being
sought. Banana and plantain are inherently extremely difficult to improve by
conventional breeding techniques. Making GMOs offers the chance to enhance
these crops, on which 400 million people, most of them poor smallholder
farmers, depend.
GMOs in agriculture
Direct modification of genetic material thus holds out
hope of several agricultural improvements. The Future Harvest Centres would be
remiss not to consider the use of GMOs to boost food security and improve the
living standards of the poorest people, especially in developing countries.
However, GMOs pose several ethical challenges that must also be addressed. The
Future Harvest Centres have adopted four principles to guide them when
considering ethical issues that may arise in connection with their food and
environmental research to benefit the developing world: equity, trusteeship of
genetic resources, respect, responsibility and integrity in science, and social
benefits. The Centres apply these principles in any consideration of the use of
genetic manipulation for crop improvement.
Because the Future Harvest Centres work for the public
good all scientists working with the Centres conform to the highest ethical and
moral standards. For GMOs, as for other biotechnologies, this means constantly
weighing short-term gains against long-term impacts. Short-term gains can help
to alleviate poverty, but the Future Harvest Centres keep a cautious watch on
the potential for positive and negative influences in the longer term. For
example, some proponents say that GMOs will benefit environmental
sustainability. The Future Harvest Centres point out that this cannot be at the
expense of the poor and the hungry. And the search for higher productivity
through GMOs must not be allowed to compromise the resources and diversity that
future generations will need to meet their research needs.
Similar views inform the position of the Future
Harvest Centres on aspects of biosafety, which is often of particular concern
in the case of GMOs. In working with research partners the Centres ensure that
the highest standards of biosafety are applied, and work only in those
countries that have biosafety regulations in place. Building capacity is an
important aspect of these partnerships.
Appropriate biotechnology
Agriculture is the dominant sector of the economy in most developing countries.
People in the developed world, where the cost of raw ingredients is a minor
element in the often over-processed, over-packaged, over-abundant food they
eat, can afford to spurn the advantages of genetically modified organisms.
People who go to bed hungry at night because they cannot grow or buy enough
food may feel differently.
But if the opportunities for GMOs in the developing
world are greater, so too are the costs. The infrastructure to assess and
monitor the impacts of GMOs may not be in place, just as the instruments for
establishing the conditions under which they may be used and for policing those
conditions may be weak.
These are not, however, reasons to abandon GMOs. Rather
they provide a strong argument for the Future Harvest Centres, with their
commitment to partnership, capacity building, and ethical science, to assist
developing countries to make their own decisions about the adoption and
deployment of GMOs.
|