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The genome of cultivated peanut provides insight into legume karyotypes, polyploid evolution and crop domestication

文献类型: 外文期刊

作者: Zhuang, Weijian 1 ; Chen, Hua 1 ; Yang, Meng 2 ; Wang, Jianping 3 ; Pandey, Manish K. 5 ; Zhang, Chong 1 ; Chang, Wen- 1 ;

作者机构: 1.Fujian Agr & Forestry Univ, Fujian Prov Key Lab Plant Mol & Cell Biol, State Key Lab Ecol Pest Control Fujian & Taiwan C, Oil Crops Res Inst, Fuzhou, Fujian, Peoples R China

2.Next Biosci Inst, Wuhan, Hubei, Peoples R China

3.Fujian Agr & Forestry Univ, Haixia Inst Sci & Technol, Fuzhou, Fujian, Peoples R China

4.Univ Florida, Dept Agron, Gainesville, FL 32611 USA

5.Int Crops Res Inst Semi Arid Trop, Ctr Excellence Genom & Syst Biol, Hyderabad, Telangana, India

6.Natl Cheng Kung Univ, Coll Biosci & Biotechnol, Tainan, Taiwan

7.Natl Cheng Kung Univ, Grad Program Translat Agr Sci, Taipei, Taiwan

8.Acad Sinica, Taipei, Taiwan

9.Guangxi Acad Agr Sci, Nanning, Peoples R China

10.Shandong Acad Agr Sci, Shandong Peanut Res Inst, Biotechnol Res Ctr, Jinan, Shandong, Peoples R China

11.North China Univ Sci & Technol, Tangshan, Peoples R China

12.Univ Western Australia, Perth, WA, Australia

13.ARS, USDA, Crop Protect & Management Res Unit, Tifton, GA USA

14.Henan Acad Agr Sci, Zhengzhou, Henan, Peoples R China

15.Chinese Acad Agr Sci, Oil Crops Res Inst, Wuhan, Hubei, Peoples R China

16.Zhongkai Univ Agr & Engn, Guangzhou, Guangdong, Peoples R China

17.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou, Fujian, Peoples R China

18.Tsinghua Univ, Sch Life Sci, Beijing, Peoples R China

19.Shenzhen Univ, Coll Life Sci & Oceanog, Guangdong Prov Key Lab Plant Epigenet, Shenzhen, Peoples R China

20.Tuskegee Univ, Tuskegee, AL 36088 USA

21.Osmania Univ, Hyderabad, Telangana, India

22.Natl Tsing Hua Univ, Coll Life Sci, Hsinchu, Taiwan

23.Univ Georgia, Plant Genome Mapping Lab, Athens, GA 30602 USA

24.Univ Illinois, Dept Plant Biol, Urbana, IL USA

期刊名称:NATURE GENETICS ( 影响因子:38.33; 五年影响因子:36.431 )

ISSN: 1061-4036

年卷期: 2019 年 51 卷 5 期

页码:

收录情况: SCI

摘要: High oil and protein content make tetraploid peanut a leading oil and food legume. Here we report a high-quality peanut genome sequence, comprising 2.54 Gb with 20 pseudomolecules and 83,709 protein-coding gene models. We characterize gene functional groups implicated in seed size evolution, seed oil content, disease resistance and symbiotic nitrogen fixation. The peanut B subgenome has more genes and general expression dominance, temporally associated with long-terminal-repeat expansion in the A subgenome that also raises questions about the A-genome progenitor. The polyploid genome provided insights into the evolution of Arachis hypogaea and other legume chromosomes. Resequencing of 52 accessions suggests that independent domestications formed peanut ecotypes. Whereas 0.42-0.47 million years ago (Ma) polyploidy constrained genetic variation, the peanut genome sequence aids mapping and candidate-gene discovery for traits such as seed size and color, foliar disease resistance and others, also providing a cornerstone for functional genomics and peanut improvement.

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