Could orphan crops or crop wild relatives help mitigate the impact of climate change on agriculture?
(2023) BrIAS — Location: Bruxelles, Belgique (4.March.2023)
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- Abstract
- In the context of climate change, an increase in temperature and a decrease in rainfalls are expected. These environmental modifications will have an impact on crops as a consequence of multi-component stress. Broadening our food sources through the integration of neglected crops, such as pseudocereals, will help to mitigate the effects of environmental change and improve qualitative food security. Regarding pseudocereals, we investigate the impacts of heat and drought on buckwheat (Fagopyrum esculentum and Fagopyrum tataricum) and the impact of salinity on amaranth (Amaranthus cruentus). These plants have received renewed interest due to their nutritional and medicinal benefices but the physiological basis of resistance mechanisms to abiotic constraints remain largely unknown in these species. Another strategy to improve crop resistance to abiotic stress is the use of wild crop relatives as a source of resistant genes. Among the tomato clade, Solanum chilense is considered as one of the most promising sources of genes for tomato selection due to its high level of genetic variability and its resistance to harsh environment. We compared the salt, drought and heat resistance of the cultivated tomato (Solanum lycopersicum) and Solanum chilense and investigated the inter-specific reproductive barriers in order to produce hybrids between the two species.
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Quinet, M. (2023). Could orphan crops or crop wild relatives help mitigate the impact of climate change on agriculture? BrIAS, Bruxelles, Belgique. https://hdl.handle.net/2078.5/247390