The genome sequence of segmental allotetraploid peanut Arachis hypogaea
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Date
2019-05-01
Date Issued
ISI Journal
Impact factor: 27.125 (Year: 2019)
Authors
Bertioli, David John
Jenkins, Jerry
Clevenger, Josh
Dudchenko, Olga
Gao, Dongying
Sejio, Guillermo
Leal-Bertioli, Soraya C M
Ren, Longhui
Farmer, Andrew
Pandey, Manish K
Citation
David John Bertioli, Jerry Jenkins, Josh Clevenger, Olga Dudchenko, Dongying Gao, Guillermo Sejio, Soraya C M Leal-Bertioli, Longhui Ren, Andrew Farmer, Manish K Pandey, Sergio Samoluk, Brian Abernathy, Gaurav Agarwal, Carolina Ballén-Taborda, Connor Cameron, Jacqueline Campbell, Carolina Chavarro, Annapurna Chitikineni, Ye Chu, Sudhansu Dash, Moaine El Baidouri, Baozhu Guo, Wei Huang, Kyung Do Kim, Walid Korani, Sophie Lanciano, Christopher Lui, Marie Mirouze, Márcio C Moretzsohn, Melanie Pham, Jin Shin, Kenta Shirasawa, senjuti sinharoy, Avinash Sreedasyam, Nathan Weeks, Xinyou Zhang, Zheng Zheng, Ziqi Sun, Lutz Froenicke, Erez Aiden, Richard Michelmore, Rajeev Varshney, C. Corley Holbrook, Ethalinda Cannon, Brian Scheffler, Jane Grimwood, Peggy Ozias-Akins, Steven B Cannon, Scott Jackson, Jeremy Schmutz. (1/5/2019). The genome sequence of segmental allotetraploid peanut Arachis hypogaea. Nature Genetics, 5(51), pp. 877-884.
Abstract
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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Pandey, Manish K https://orcid.org/0000-0002-4101-6530