Global analysis to save the wild side of staple food crops
Jane Toll, Project Manager at the Global Crop Diversity Trust, adds, “This study has thrown up some surprises. Crop wild relatives in some areas in Australia, Europe and the USA need to be collected just as much as those in regions of Africa, Asia and South America. We want to ensure access to the wild genes that could boost the crops relied on by some of the world’s poorest people. These wild genes have the potential to increase yields, pest resistance and tolerance to extreme temperatures.”
Dr Ruth Eastwood, Crop Wild Relative Project Coordinator from Kew’s Millennium Seed Bank, says, “Adapting agriculture to climate change is one of the most urgent challenges of our time. Crop wild relatives are already being used to make improvements to our food crops right now and are extremely valuable economically as well, but they are underutilised. In a separate study by PwC, commissioned by Kew’s Millennium Seed Bank, it is estimated that the monetary value to agriculture of improved productivity or stress resistance traits that crop wild relatives offer is currently $42bn with the potential to be $120bn in the future."
Facts and figures
- Gap analysis results show that 54% of the crop wild relatives on the target list are high priority for collection as they have not been collected before or existing collections do not adequately represent their full geographic distribution
- The top five crops most at risk are eggplant, potato, apple, sunflower and carrot, as a large number of their crop wild relatives are high priority species for collection
- Important cereal crops in much of Africa, including sorghum and finger millet, are also at high risk and the collection of their wild relatives is being prioritised
Where in the world are wild relatives most at risk?
Countries with the richest number of priority crop wild relatives include: Australia, Bolivia, China, Cyprus, Ecuador, Ethiopia, India, Italy, Kenya, Mexico, Mozambique, Peru, Portugal, South Africa, Turkey and USA. Although these countries are mostly located in the traditionally recognised centres of high wild crop diversity, notable exceptions are USA, Australia and the European countries.
This highlights the important role that the wild plant resources in industrialised countries have to contribute to food security in developing nations. It is expected that there will be collecting in Italy and Portugal this summer, carried out by scientists from Kew’s Millennium Seed Bank and local partners
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