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

Bertioli, D J and Cannon, S B and Froenicke, L and Huang, G and Farmer, A D and Cannon, E K S and Liu, X and Gao, D and Clevenger, J and Dash, S and Ren, L and Moretzsohn, M C and Shirasawa, K and Huang, W and Vidigal, B and Abernathy, B and Chu, Y and Niederhuth, C E and Umale, P and Araújo, A C G and Kozik, A and Kim, K D and Burow, M D and Varshney, R K and Wang, X and Zhang, X and Barkley, N and Guimarães, P M and Isobe, S and Guo, B and Liao, B and Stalker, H T and Schmitz, R J and Scheffler, B E and Leal-Bertioli, S C M and Xun, X and Jackson, S A and Michelmore, R and Ozias-Akins, P (2016) The genome sequences of Arachis duranensis and Arachis ipaensis, the diploid ancestors of cultivated peanut. Nature Genetics, 48 (-). pp. 438-446. ISSN 1546-1718

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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.

Item Type: Article
Divisions: RP-Grain Legumes
CRP: CGIAR Research Program on Grain Legumes
Uncontrolled Keywords: Genomics, Plant genetics, Sequencing, Cultivated peanut, Peanut, Groundnut
Subjects: Mandate crops > Groundnut
Others > Genetics and Genomics
Depositing User: Mr Ramesh K
Date Deposited: 07 Mar 2016 09:05
Last Modified: 11 Apr 2017 06:22
URI: http://oar.icrisat.org/id/eprint/9364
Official URL: http://dx.doi.org/10.1038/ng.3517
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: D. Hoisington, H. Shapiro, H. Valentine, R. Wilson and D. Ward for their support of and work for the Peanut Genome Initiative. We thank J.F.M. Valls, C. Simpson and G. Seijo for valuable discussions. Major financial contributors for this work were from Mars, US peanut sheller associations, the National Peanut Board and other industry groups. A full list can be downloaded at http://peanutbioscience.com/peanutgenomeproject.html. We also thank the generous support of the Agriculture and Food Research Initiative for grant 2012-85117-19435 from the US Department of Agriculture, the US National Science Foundation for grant NSF-MCB-1339194 to R.J.S., EMBRAPA (Brazil) for project 02.11.08.006.00 and the National High-Technology Research and Development Program (China) for grant 2012AA02A701
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