文献类型： 外文期刊
作者： Zeng, Xingquan 1 ; Guo, Yu 3 ; Xu, Qijun 1 ; Mascher, Martin 4 ; Guo, Ganggang 5 ; Li, Shuaicheng 6 ; Mao, Likai 3 ; Liu, 1 ;
作者机构： 1.State Key Lab Hulless Barley & Yak Germplasm Reso, Lhasa 850002, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Inst Agr Res, Lhasa Tibet 850002, Peoples R China
3.BGI Shenzhen, BGI Genom, Shenzhen 518083, Peoples R China
4.Leibniz Inst Plant Genet & Crop Plant Res IPK Gat, D-06466 Seeland, Germany
5.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
6.City Univ Hong Kong, Dept Comp Sci, Hong Kong 999077, Peoples R China
7.Tibet Acad Agr & Anim Husb Sci, Lhasa Tibet 850002, Peoples R China
8.Chengdu Life Baseline Technol Co Ltd, Chengdu 610041, Sichuan, Peoples R China
9.BGI Shenzhen, Shenzhen 518083, Peoples R China
10.James D Watson Inst Genome Sci, Hangzhou 310058, Zhejiang, Peoples R China
11.Univ Queensland, Queensland Alliance Agr & Food Innovat, Brisbane, Qld 4072, Australia
期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）
ISSN： 2041-1723
年卷期： 2018 年 9 卷
页码：
收录情况： SCI
摘要： Tibetan barley (Hordeum vulgare L., qingke) is the principal cereal cultivated on the Tibetan Plateau for at least 3,500 years, but its origin and domestication remain unclear. Here, based on deep-coverage whole-genome and published exome-capture resequencing data for a total of 437 accessions, we show that contemporary qingke is derived from eastern domesticated barley and it is introduced to southern Tibet most likely via north Pakistan, India, and Nepal between 4,500 and 3,500 years ago. The low genetic diversity of qingke suggests Tibet can be excluded as a center of origin or domestication for barley. The rapid decrease in genetic diversity from eastern domesticated barley to qingke can be explained by a founder effect from 4,500 to 2,000 years ago. The haplotypes of the five key domestication genes of barley support a feral or hybridization origin for Tibetan weedy barley and reject the hypothesis of native Tibetan wild barley.
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