| Literature DB >> 26901068 |
David John Bertioli1,2, Steven B Cannon3, Lutz Froenicke4,5, Guodong Huang6, Andrew D Farmer7, Ethalinda K S Cannon8, Xin Liu6, Dongying Gao2, Josh Clevenger9, Sudhansu Dash7, Longhui Ren10, Márcio C Moretzsohn11, Kenta Shirasawa12, Wei Huang13, Bruna Vidigal1,11, Brian Abernathy2, Ye Chu14, Chad E Niederhuth15, Pooja Umale7, Ana Cláudia G Araújo11, Alexander Kozik4, Kyung Do Kim2, Mark D Burow16,17, Rajeev K Varshney18, Xingjun Wang19, Xinyou Zhang20, Noelle Barkley21,22, Patrícia M Guimarães11, Sachiko Isobe12, Baozhu Guo23, Boshou Liao24, H Thomas Stalker25, Robert J Schmitz15, Brian E Scheffler26, Soraya C M Leal-Bertioli2,11, Xu Xun6, Scott A Jackson2, Richard Michelmore4,5, Peggy Ozias-Akins9,14.
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.Entities:
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Year: 2016 PMID： 26901068 DOI： 10.1038/ng.3517
Source DB: PubMed Journal: Nat Genet ISSN： 1061-4036 Impact factor: 38.330