文献类型： 外文期刊
作者： Bertioli, David J. 1 ; Jenkins, Jerry 4 ; Clevenger, Josh 1 ; Dudchenko, Olga 5 ; Gao, Dongying 1 ; Seijo, Guillerm 1 ;
作者机构： 1.Univ Georgia, Ctr Appl Genet Technol, Athens, GA 30602 USA
2.Univ Georgia, Inst Plant Breeding Genet & Genom, Athens, GA 30602 USA
3.Univ Georgia, Dept Crop & Soil Sci, Athens, GA 30602 USA
4.HudsonAlpha Inst Biotechnol, Huntsville, AL 35806 USA
5.Baylor Coll Med, Ctr Genome Architecture, Houston, TX 77030 USA
6.UNNE, CONICET, Inst Bot Nordeste, Corrientes, Argentina
7.Univ Nacl Nordeste, FACENA, Corrientes, Argentina
8.Univ Georgia, Dept Plant Pathol, Tifton, GA 31793 USA
9.Iowa State Univ, Interdept Genet Grad Program, Ames, IA USA
10.Natl Ctr Genome Resources, Santa Fe, NM USA
11.Int Crops Res Inst Semi Arid Trop, Ctr Excellence Genom & Syst Biol, Hyderabad, Telangana, India
12.Iowa State Univ, Dept Comp Sci, Ames, IA USA
13.Univ Georgia, Dept Hort, Tifton, GA USA
14.CNRS, UMR5096, Lab Genome & Dev Plantes, Perpignan, France
15.Univ Perpignan, UMR5096, Lab Genome & Dev Plantes, Perpignan, France
16.ARS, Crop Protect & Management Res Unit, USDA, Tifton, GA USA
17.LG Chem, Corp R&D, Seoul, South Korea
18.IRD, UMR232, Diversite Adaptat & Dev Plantes, Montpellier, France
19.Univ Montpellier, UMR232, Diversite Adaptat & Dev Plantes, Montpellier, France
20.Embrapa Genet Resources & Biotechnol, Brasilia, DF, Brazil
21.Kazusa DNA Res Inst, Dept Frontier Res & Dev, Kisarazu, Japan
22.Natl Inst Plant Genome Res, New Delhi, India
23.ARS, Corn Insects & Crop Genet Res Unit, USDA, Ames, IA USA
24.Henan Acad Agr Sci, Ind Crops Res Inst, Henan Prov Key Lab Genet Improvement Oil Crops, Zhengzhou, Henan, Peoples R China
25.Minist Agr & Rural Affairs, Key Lab Oil Crops Huanghuaihai Plains, Zhengzhou, Henan, Peoples R China
26.Univ Calif Davis, Genome Ctr, Davis, CA 95616 USA
27.ARS, Crop Genet & Breeding Res Unit, USDA, Tifton, GA USA
28.ARS, Genom & Bioinformat Res Unit, USDA, Stoneville, MS USA
29.Joint Genome Inst, Dept Energy, Walnut Creek, CA 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： Like many other crops, the cultivated peanut (Arachis hypogaea L.) is of hybrid origin and has a polyploid genome that contains essentially complete sets of chromosomes from two ancestral species. Here we report the genome sequence of peanut and show that after its polyploid origin, the genome has evolved through mobile-element activity, deletions and by the flow of genetic information between corresponding ancestral chromosomes (that is, homeologous recombination). Uniformity of patterns of homeologous recombination at the ends of chromosomes favors a single origin for cultivated peanut and its wild counterpart A. monticola. However, through much of the genome, homeologous recombination has created diversity. Using new polyploid hybrids made from the ancestral species, we show how this can generate phenotypic changes such as spontaneous changes in the color of the flowers. We suggest that diversity generated by these genetic mechanisms helped to favor the domestication of the polyploid A. hypogaea over other diploid Arachis species cultivated by humans.
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