A map of rice genome variation reveals the origin of cultivated rice
| Autor: | Takahiko Kubo, Qun Xu, Tingting Lu, Nori Kurata, Jiayang Li, Xuehui Huang, Qian Qian, Yunli Guo, Lei Feng, Yongchun Wang, Kunyan Liu, Qilin Zhan, Yiqi Lu, Zi-Xuan Wang, Xinghua Wei, Qijun Weng, Danlin Fan, Asao Fujiyama, Ahong Wang, Bin Han, Qi Feng, Hiroyasu Furuumi, Tao Huang, Xiaoping Yuan, Wenjun Li, Chuanrang Zhu, Yan Zhao, Hengyun Lu, Atsushi Toyoda, Guojun Dong, Toshie Miyabayashi, Lei Zhang, Congcong Zhou, Qiang Zhao, Canyang Li |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Crops
Agricultural Plant genetics Oryza barthii Geographic Mapping Breeding Polymorphism Single Nucleotide Japonica Article Evolution Molecular Botany Selection Genetic Domestication History Ancient Phylogeny Multidisciplinary Oryza sativa biology business.industry Genomics of domestication food and beverages Genetic Variation Functional genomics Agriculture Oryza Genomics biology.organism_classification Oryza rufipogon Biotechnology Phylogenetics Oryza nivara business Genome Plant |
| Zdroj: | Nature |
| ISSN: | 1476-4687 0028-0836 |
| Popis: | 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. Supplementary information The online version of this article (doi:10.1038/nature11532) contains supplementary material, which is available to authorized users. Whole-genome sequences of wild rice and cultivated rice varieties are used to produce a map of rice genome variation, and show that rice was probably first domesticated in southern China. Supplementary information The online version of this article (doi:10.1038/nature11532) contains supplementary material, which is available to authorized users. Rice origins revealed in gene variation map Cultivated rice (Oryza sativa) is thought to have been domesticated from wild rice (Oryza rufipogon) thousands of years ago. This Chinese/Japanese collaboration reports whole-genome sequences from 446 wild rice isolates from across Asia and Oceana, and from more than 1,000 indica and japonica subspecies of cultivated rice. The resulting map of genome variation will be an important resource for rice breeding and for crop-domestication research. Supplementary information The online version of this article (doi:10.1038/nature11532) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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