The genome sequences of Arachis duranensis and Arachis ipaensis, the diploid ancestors of cultivated peanut

David John Bertioli, Steven B. Cannon, Lutz Froenicke, Guodong Huang, Andrew D. Farmer, Ethalinda K S Cannon, Xin Liu, Dongying Gao, Josh Clevenger, Sudhansu Dash, Longhui Ren, Mrcio C. Moretzsohn, Kenta Shirasawa, Wei Huang, Bruna Vidigal, Brian Abernathy, Ye Chu, Chad E. Niederhuth, Pooja Umale, Ana Cludia G ArajoAlexander Kozik, Kyung Do Kim, Mark D. Burow, Rajeev K. Varshney, Xingjun Wang, Xinyou Zhang, Noelle Barkley, Patrcia M. Guimares, Sachiko Isobe, Baozhu Guo, Boshou Liao, H. Thomas Stalker, Robert J. Schmitz, Brian E. Scheffler, Soraya C M Leal-Bertioli, Xu Xun, Scott A. Jackson, Richard W Michelmore, Peggy Ozias-Akins

Research output: Contribution to journalArticle

317 Scopus citations

Abstract

Cultivated peanut (Arachis hypogaea) is an allotetraploid with closely related subgenomes of a total size of ∼2.7 Gb. This makes the assembly of chromosomal pseudomolecules very challenging. As a foundation to understanding the genome of cultivated peanut, we report the genome sequences of its diploid ancestors (Arachis duranensis and Arachis ipaensis). We show that these genomes are similar to cultivated peanut's A and B subgenomes and use them to identify candidate disease resistance genes, to guide tetraploid transcript assemblies and to detect genetic exchange between cultivated peanut's subgenomes. On the basis of remarkably high DNA identity of the A. ipaensis genome and the B subgenome of cultivated peanut and biogeographic evidence, we conclude that A. ipaensis may be a direct descendant of the same population that contributed the B subgenome to cultivated peanut.

Original languageEnglish (US)
Pages (from-to)438-446
Number of pages9
JournalNature Genetics
Volume48
Issue number4
DOIs
StatePublished - Mar 29 2016

ASJC Scopus subject areas

  • Medicine(all)
  • Genetics

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    Bertioli, D. J., Cannon, S. B., Froenicke, L., Huang, G., Farmer, A. D., Cannon, E. K. S., Liu, X., Gao, D., Clevenger, J., Dash, S., Ren, L., Moretzsohn, M. C., Shirasawa, K., Huang, W., Vidigal, B., Abernathy, B., Chu, Y., Niederhuth, C. E., Umale, P., ... Ozias-Akins, P. (2016). The genome sequences of Arachis duranensis and Arachis ipaensis, the diploid ancestors of cultivated peanut. Nature Genetics, 48(4), 438-446. https://doi.org/10.1038/ng.3517