A map of rice genome variation reveals the origin of cultivated rice

文献类型： 外文期刊

第一作者： Huang, Xuehui

作者： Huang, Xuehui;Wang, Zi-Xuan;Wang, Ahong;Zhao, Qiang;Zhao, Yan;Liu, Kunyan;Lu, Hengyun;Li, Wenjun;Guo, Yunli;Lu, Yiqi;Zhou, Congcong;Fan, Danlin;Weng, Qijun;Zhu, Chuanrang;Huang, Tao;Zhang, Lei;Wang, Yongchun;Feng, Lei;Zhan, Qilin;Li, Canyang;Lu, Tingting;Feng, Qi;Han, Bin;Kurata, Nori;Wang, Zi-Xuan;Furuumi, Hiroyasu;Kubo, Takahiko;Miyabayashi, Toshie;Fujiyama, Asao;Toyoda, Atsushi;Kurata, Nori;Wang, Zi-Xuan;Furuumi, Hiroyasu;Kubo, Takahiko;Miyabayashi, Toshie;Fujiyama, Asao;Toyoda, Atsushi;Wei, Xinghua;Yuan, Xiaoping;Xu, Qun;Dong, Guojun;Qian, Qian;Li, Jiayang;Han, Bin

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期刊名称：NATURE （ 影响因子：49.962； 五年影响因子：54.637 ）

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收录情况： SCI

摘要： 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.

分类号： N

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