Source:
International Plant Genetic Resources Institute
(IPGRI)The
countries of the world set themselves some formidable
challenges when they adopted the Millennium Development
Goals: to reduce acute poverty and hunger by half, to
improve the health of mothers and children, to ensure
environmental sustainability -- among others -- and all
by the year 2015. Many of the MDGs depend crucially on
agriculture. And agriculture depends crucially on the
use of genetic resources, the variation between
individuals that is the basis of their different
performance under different circumstances.
Some kinds of rice, for example, can grow in 5 metres or
more of water. Others make do with just a few
centimetres. The differences between them are in their
genes, and farmers and breeders can make use of those
genes to improve their crops and select the
characteristics they want. That is how breeders at the
African Rice Centre approached the problem of feeding
parts of Africa, by bringing together the genetic
resources of several different rice varieties from two
different species to create the so-called Nerica (New
Rice for Africa) varieties.
Nerica varieties represent a tremendous step forward.
They yield 1.5 to 2 tonnes per hectare, compared to 1
tonne or less for traditional varieties. They also
mature more quickly, so that farmers can grow a second
crop such as beans, which are nutritious and return
fertility to the soil. And Nerica varieties are
themselves more nutritious, with 10-12% protein as
opposed to the 8-10% of traditional varieties. Nerica
varieties alone are not going to solve Africa’s
problems, but without them the countries that depend on
rice have absolutely no hope of meeting the Millennium
Development Goals.
The creation of Nerica rice – and countless other
examples of more productive crop varieties – could not
have happened without the exchange of plant genetic
resources. Nerica’s two main parents come from Africa
and Asia, and in their own ancestry they can count
varieties from hundreds, if not thousands, of different
locations. Every country’s food supply and crop
improvement efforts depends to a greater or lesser
extent – usually greater – on material from elsewhere.
Spain’s “traditional” rice, beans, tomatoes and garlic,
for example, come originally from Asia, South America
and the Caucasus.
The
International Treaty on Plant Genetic Resources for Food
and Agriculture (ITPGRFA) is the first global
instrument designed to facilitate the exchange of plant
genetic resources and is thus a vital underpinning of
improved varieties. Exchange is itself a major benefit
of the Treaty, but the Treaty also establishes a system
for access and benefit sharing that under certain
circumstances will allow rural communities in developing
countries to profit from commercialized varieties that
make use of plant genetic resources.
Breeding more productive varieties is probably the most
significant way in which the exchange of plant genetic
resources that is facilitated by the International
Treaty will make a difference to meeting the MDGs. Such
varieties are crucial to meeting the pressing need for
adequate calories and protein. An estimated 842 million
people around the world still suffer from a chronic
shortage of food. But there are also an estimated 2
billion people – mainly women and young children – who
suffer the hidden hunger of missing micronutrients, such
as iron and vitamin A. The International Treaty can help
them too. Researchers will be able to use the
information system envisaged by the Treaty to find
varieties that deliver better nutrition, and then to use
those resources to create new varieties of staple crops
that may not have higher overall yields but that
nevertheless deliver more of the vital micronutrients.
In the Pacific, for example, there are orange-fleshed
Fe’i bananas, just one of which delivers more than the
adult daily requirement of vitamin A. In other parts of
the world, such as East Africa, bananas are a staple
crop and vitamin A deficiency is common. If the two
types of banana could be combined it could go a long way
to meeting East Africa’s need for vitamin A.
Better nutrition is also delivered by a more diverse
diet, and the Treaty will help here too, by enabling
farmers and researchers to access a wide variety of
crops and varieties that could be brought into farming
systems. More diverse farming systems are more resilient
and better survive disturbances such as drought. They
also make fewer demands on the environment. And the
products of more diverse farms, translated into more
diverse diets, deliver better nutrition and health.
These are just some of the ways in which genetic
resources can help people to meet the Millennium
Development Goals. The crucial point is that no one
country has all the genetic resources it needs to
improve its agriculture. The International Treaty, by
facilitating the exchange of plant genetic resources,
makes possible a more productive agriculture. In itself,
that is not enough to meet the MDGs. But without it,
there is absolutely no hope.