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Phylogeography of Asian wild rice, Oryza rufipogon, reveals multiple independent domestications of cultivated rice, Oryza sativa

Londo, J.P ; Chiang, Y.C ; Hung, K.H ; Chiang, T.Y ; Schaal, B.A

Proceedings of the National Academy of Sciences - PNAS, 2006-06, Vol.103 (25), p.9578-9583 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Phylogeography of Asian wild rice, Oryza rufipogon, reveals multiple independent domestications of cultivated rice, Oryza sativa
Autor: Londo, J.P ; Chiang, Y.C ; Hung, K.H ; Chiang, T.Y ; Schaal, B.A
Assuntos: Asia ; Base Sequence ; Biodiversity ; Biological Sciences ; Botany ; Cell Nucleus - genetics ; Chloroplasts - genetics ; Crops, Agricultural - classification ; Crops, Agricultural - genetics ; Deoxyribonucleic acid ; DNA ; Evolution ; Food crops ; Genetic diversity ; Genetic variation ; Genetic Variation - genetics ; Geographic regions ; Haplotypes ; Molecular Sequence Data ; Oryza - classification ; Oryza - genetics ; Oryza rufipogon ; Oryza sativa ; Oryza sativa indica ; Oryza sativa japonica ; Phylogeny ; Plant domestication ; Plant Proteins - genetics ; Plants ; Ribulose-Bisphosphate Carboxylase - genetics ; Rice ; Studies ; Wild rice
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2006-06, Vol.103 (25), p.9578-9583
Notas: http://www.pnas.org/contents-by-date.0.shtml
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Author contributions: J.P.L. and Y.-C.C. designed research; J.P.L., Y.-C.C., K.-H.H., and B.A.S. performed research; T.-Y.C. and B.A.S. contributed new reagents/analytic tools; J.P.L. and Y.-C.C. analyzed data; and J.P.L. wrote the paper.
Contributed by Barbara A. Schaal, May 1, 2006
Descrição: Cultivated rice, Oryza sativa L., represents the world's most important staple food crop, feeding more than half of the human population. Despite this essential role in world agriculture, the history of cultivated rice's domestication from its wild ancestor, Oryza rufipogon, remains unclear. In this study, DNA sequence variation in three gene regions is examined in a phylogeographic approach to investigate the domestication of cultivated rice. Results indicate that India and Indochina may represent the ancestral center of diversity for O. rufipogon. Additionally, the data suggest that cultivated rice was domesticated at least twice from different O. rufipogon populations and that the products of these two independent domestication events are the two major rice varieties, Oryza sativa indica and Oryza sativa japonica. Based on this geographical analysis, O. sativa indica was domesticated within a region south of the Himalaya mountain range, likely eastern India, Myanmar, and Thailand, whereas O. sativa japonica was domesticated from wild rice in southern China.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Phylogeography of Asian wild rice, Oryza rufipogon, reveals multiple independent domestications of cultivated rice, Oryza sativa

Londo, J.P ; Chiang, Y.C ; Hung, K.H ; Chiang, T.Y ; Schaal, B.A

United States: National Academy of Sciences

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