The genome sequence of segmental allotetraploid peanut Arachis hypogaea

David J. Bertioli, Jerry Jenkins, Josh Clevenger, Olga Dudchenko, Dongying Gao, Guillermo Seijo, Soraya C.M. Leal-Bertioli, Longhui Ren, Andrew D. Farmer, Manish K. Pandey, Sergio S. Samoluk, Brian Abernathy, Gaurav Agarwal, Carolina Ballén-Taborda, Connor Cameron, Jacqueline Campbell, Carolina Chavarro, Annapurna Chitikineni, Ye Chu, Sudhansu DashMoaine El Baidouri, Baozhu Guo, Wei Huang, Kyung Do Kim, Walid Korani, Sophie Lanciano, Christopher G. Lui, Marie Mirouze, Márcio C. Moretzsohn, Melanie Pham, Jin Hee Shin, Kenta Shirasawa, Senjuti Sinharoy, Avinash Sreedasyam, Nathan T. Weeks, Xinyou Zhang, Zheng Zheng, Ziqi Sun, Lutz Froenicke, Erez L. Aiden, Richard W Michelmore, Rajeev K. Varshney, C. Corley Holbrook, Ethalinda K.S. Cannon, Brian E. Scheffler, Jane Grimwood, Peggy Ozias-Akins, Steven B. Cannon, Scott A. Jackson, Jeremy Schmutz

Research output: Contribution to journalArticle

54 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)877-884
Number of pages8
JournalNature Genetics
Volume51
Issue number5
DOIs
StatePublished - May 1 2019

ASJC Scopus subject areas

  • Genetics

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    Bertioli, D. J., Jenkins, J., Clevenger, J., Dudchenko, O., Gao, D., Seijo, G., Leal-Bertioli, S. C. M., Ren, L., Farmer, A. D., Pandey, M. K., Samoluk, S. S., Abernathy, B., Agarwal, G., Ballén-Taborda, C., Cameron, C., Campbell, J., Chavarro, C., Chitikineni, A., Chu, Y., ... Schmutz, J. (2019). The genome sequence of segmental allotetraploid peanut Arachis hypogaea. Nature Genetics, 51(5), 877-884. https://doi.org/10.1038/s41588-019-0405-z