The evolutionary origin(s) and spread of rice

Thu, Mar 5, 2020, 12:30 pm

Domesticated species are an interesting group of organisms that have co-evolved with Homo sapiens, and have begun important in human survival and fitness. Using both genomic and archaeological data, we trace the origin and evolution of Asian rice, Oryza sativa, the most important food crop in the planet. We provide evidence that O. sativa was domesticated first in China, and that spread of domestication alleles to other populations partly led to the diversity of rice we see today.  Using whole-genome sequences of >1,000 traditional landraces, coupled with geographic, environmental, archaeobotanical and paleoclimate data, we also reconstruct extrinsic factors that impact genome diversity, and reconstruct the dispersal of rice in Asia.

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Open to the public.
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