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Open Access. Powered by Scholars. Published by Universities.®

2007

University of Massachusetts Amherst

Genetics and Genomics

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Genome-Wide Patterns Of Nucleotide Polymorphism In Domesticated Rice, Ana Caicedo, S. Williamson, R, Hernandez, A. Boyko, A. Fleded-Alon, T. York, N. Polato, K. Olsen, R. Nielsen, S. Mccouch, C. Bustamante, M. Purugganan Jan 2007

Genome-Wide Patterns Of Nucleotide Polymorphism In Domesticated Rice, Ana Caicedo, S. Williamson, R, Hernandez, A. Boyko, A. Fleded-Alon, T. York, N. Polato, K. Olsen, R. Nielsen, S. Mccouch, C. Bustamante, M. Purugganan

Biology Department Faculty Publication Series

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 …


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 Jan 2007

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 …