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Genome-Wide Patterns Of Nucleotide Polymorphism In Domesticated Rice, Ana Lucia Caicedo, S. H. Williamson, R, D. Hernandez, A. Boyko, A. Fleded-Alon, T. L. York, N. Polato, K. M. Olsen, R. Nielsen, S. Mccouch, C. D. Bustamante, M. D. Purugganan
Genome-Wide Patterns Of Nucleotide Polymorphism In Domesticated Rice, Ana Lucia Caicedo, S. H. Williamson, R, D. Hernandez, A. Boyko, A. Fleded-Alon, T. L. York, N. Polato, K. M. Olsen, R. Nielsen, S. Mccouch, C. D. Bustamante, M. D. Purugganan
Ana Lucia Caicedo
Domesticated Asian rice (Oryza sativa) is one of the oldest domesticated crop species in the world, having fed more people than any other plant in human history. We report the patterns of DNA sequence variation in rice and its wild ancestor, O. rufipogon, across 111 randomly chosen gene fragments, and use these to infer the evolutionary dynamics that led to the origins of rice. There is a genome-wide excess of high-frequency derived single nucleotide polymorphisms (SNPs) in O. sativa varieties, a pattern that has not been reported for other crop species. We developed several alternative models to explain contemporary patterns …