Journal
NATURE COMMUNICATIONS
Volume 9, Issue -, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-018-02867-z
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Funding
- US National Science Foundation Plant Genome Program [NSF-PGRP 1339346]
- United States Agency for International Development under the Feed the Future Program [AID-OAA-A-14-00008]
- Government of Norway through the Global Crop Diversity Trust [CWR14NOR2 3.3 07]
- Australian Grain Research Development Corporation
- Australian Grain Research Development Corporation GRDC [DSP00185]
- Agriculture Development Fund of the Saskatchewan Ministry of Agriculture
- Saskatchewan Pulse Growers
- Western Grains Research Foundation
- Howard Hughes Medical Institute [52006924]
- USDA-NIFA Hispanic Serving Institutions Grant [2011-38422-30804]
- Russian Scientific Fund [16-16-00007]
- NIFA [2011-38422-30804, 579119] Funding Source: Federal RePORTER
- Russian Science Foundation [16-16-00007] Funding Source: Russian Science Foundation
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Domesticated species are impacted in unintended ways during domestication and breeding. Changes in the nature and intensity of selection impart genetic drift, reduce diversity, and increase the frequency of deleterious alleles. Such outcomes constrain our ability to expand the cultivation of crops into environments that differ from those under which domestication occurred. We address this need in chickpea, an important pulse legume, by harnessing the diversity of wild crop relatives. We document an extreme domestication-related genetic bottleneck and decipher the genetic history of wild populations. We provide evidence of ancestral adaptations for seed coat color crypsis, estimate the impact of environment on genetic structure and trait values, and demonstrate variation between wild and cultivated accessions for agronomic properties. A resource of genotyped, association mapping progeny functionally links the wild and cultivated gene pools and is an essential resource chickpea for improvement, while our methods inform collection of other wild crop progenitor species.
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