Genome sequencing of adzuki bean (Vigna angularis) provides insight into high starch and low fat accumulation and domestication

Publication Overview
TitleGenome sequencing of adzuki bean (Vigna angularis) provides insight into high starch and low fat accumulation and domestication
AuthorsYang K, Tian Z, Chen C, Luo L, Zhao B, Wang Z, Yu L, Li Y, Sun Y, Li W, Chen Y, Li Y, Zhang Y, Ai D, Zhao J, Shang C, Ma Y, Wu B, Wang M, Gao L, Sun D, Zhang P, Guo F, Wang W, Li Y, Wang J, Varshney RK, Wang J, Ling HQ, Wan P
TypeJournal Article
Journal NameProceedings of the National Academy of Sciences of the United States of America
Volume112
Issue43
Year2015
Page(s)13213-8
CitationYang K, Tian Z, Chen C, Luo L, Zhao B, Wang Z, Yu L, Li Y, Sun Y, Li W, Chen Y, Li Y, Zhang Y, Ai D, Zhao J, Shang C, Ma Y, Wu B, Wang M, Gao L, Sun D, Zhang P, Guo F, Wang W, Li Y, Wang J, Varshney RK, Wang J, Ling HQ, Wan P. Genome sequencing of adzuki bean (Vigna angularis) provides insight into high starch and low fat accumulation and domestication. Proceedings of the National Academy of Sciences of the United States of America. 2015 Oct 27; 112(43):13213-8.

Abstract

Adzuki bean (Vigna angularis), an important legume crop, is grown in more than 30 countries of the world. The seed of adzuki bean, as an important source of starch, digestible protein, mineral elements, and vitamins, is widely used foods for at least a billion people. Here, we generated a high-quality draft genome sequence of adzuki bean by whole-genome shotgun sequencing. The assembled contig sequences reached to 450 Mb (83% of the genome) with an N50 of 38 kb, and the total scaffold sequences were 466.7 Mb with an N50 of 1.29 Mb. Of them, 372.9 Mb of scaffold sequences were assigned to the 11 chromosomes of adzuki bean by using a single nucleotide polymorphism genetic map. A total of 34,183 protein-coding genes were predicted. Functional analysis revealed that significant differences in starch and fat content between adzuki bean and soybean were likely due to transcriptional abundance, rather than copy number variations, of the genes related to starch and oil synthesis. We detected strong selection signals in domestication by the population analysis of 50 accessions including 11 wild, 11 semiwild, 17 landraces, and 11 improved varieties. In addition, the semiwild accessions were illuminated to have a closer relationship to the cultigen accessions than the wild type, suggesting that the semiwild adzuki bean might be a preliminary landrace and play some roles in the adzuki bean domestication. The genome sequence of adzuki bean will facilitate the identification of agronomically important genes and accelerate the improvement of adzuki bean.

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Additional details for this publication include:
Property NameValue
Publication ModelPrint-Electronic
ISSN1091-6490
eISSN1091-6490
Publication Date2015 Oct 27
Journal AbbreviationProc. Natl. Acad. Sci. U.S.A.
DOI10.1073/pnas.1420949112
Elocation10.1073/pnas.1420949112
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountryUnited States
Publication TypeResearch Support, Non-U.S. Gov't
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PMID: PubMedPMID:26460024