RRC ID 19138
Author Huang X, Kurata N, Wei X, Wang ZX, Wang A, Zhao Q, Zhao Y, Liu K, Lu H, Li W, Guo Y, Lu Y, Zhou C, Fan D, Weng Q, Zhu C, Huang T, Zhang L, Wang Y, Feng L, Furuumi H, Kubo T, Miyabayashi T, Yuan X, Xu Q, Dong G, Zhan Q, Li C, Fujiyama A, Toyoda A, Lu T, Feng Q, Qian Q, Li J, Han B.
Title A map of rice genome variation reveals the origin of cultivated rice.
Journal Nature
Abstract Crop domestications are long-term selection experiments that have greatly advanced human civilization. The domestication of cultivated rice (Oryza sativa L.) ranks as one of the most important developments in history. However, its origins and domestication processes are controversial and have long been debated. Here we generate genome sequences from 446 geographically diverse accessions of the wild rice species Oryza rufipogon, the immediate ancestral progenitor of cultivated rice, and from 1,083 cultivated indica and japonica varieties to construct a comprehensive map of rice genome variation. In the search for signatures of selection, we identify 55 selective sweeps that have occurred during domestication. In-depth analyses of the domestication sweeps and genome-wide patterns reveal that Oryza sativa japonica rice was first domesticated from a specific population of O. rufipogon around the middle area of the Pearl River in southern China, and that Oryza sativa indica rice was subsequently developed from crosses between japonica rice and local wild rice as the initial cultivars spread into South East and South Asia. The domestication-associated traits are analysed through high-resolution genetic mapping. This study provides an important resource for rice breeding and an effective genomics approach for crop domestication research.
Volume 490(7421)
Pages 497-501
Published 2012-10-25
DOI 10.1038/nature11532
PII nature11532
PMID 23034647
MeSH Agriculture / history* Breeding / history Crops, Agricultural / classification Crops, Agricultural / genetics* Crops, Agricultural / growth & development Evolution, Molecular* Genetic Variation / genetics* Genome, Plant / genetics* Genomics Geographic Mapping* History, Ancient Oryza / classification Oryza / genetics* Oryza / growth & development Phylogeny Polymorphism, Single Nucleotide / genetics Selection, Genetic
IF 41.577
Times Cited 374
WOS Category GENETICS & HEREDITY
Resource
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