Construction of a High-Density Genetic Map and Its Application for QTL Mapping of Leaflet Shapes in Mung Bean (Vigna radiata L.).

Publication Overview
TitleConstruction of a High-Density Genetic Map and Its Application for QTL Mapping of Leaflet Shapes in Mung Bean (Vigna radiata L.).
AuthorsWang J, Li J, Liu Z, Yuan X, Wang S, Chen H, Chen X, Cheng X, Wang L
TypeJournal Article
Journal NameFrontiers in genetics
Volume11
Year2020
Page(s)1032
CitationWang J, Li J, Liu Z, Yuan X, Wang S, Chen H, Chen X, Cheng X, Wang L. Construction of a High-Density Genetic Map and Its Application for QTL Mapping of Leaflet Shapes in Mung Bean (Vigna radiata L.).. Frontiers in genetics. 2020; 11:1032.

Abstract

Mung bean (Vigna radiata L.) is an important but understudied food legume in Asia and now worldwide. Genetic studies may help to accelerate the exploitation of new genes for breeding in this crop. Here, we used a recombination inbred line population to construct an SNP genetic linkage map by genome sequencing technology. We obtained 21,508 high-quality SNP markers integrated into 1,946 bin markers that were mapped onto 11 linkage groups (LGs) with 99-258 bin markers per LG. The total genetic length of the map was 1060.2 cM (38.76-168.03 cM per LG), with an average distance between markers of 0.54 cM. However, there were 18 gaps >5 cM, distribution on LG1, 3, 5, 7, and 9. Gene mapping for lobed and indented leaflets was conducted using the map. A major quantitative trait locus (QTL) associated with indented leaflets was detected on chromosome 10, with phenotypic variation explained (PVE) values of 39.7% and 45.4% under two different environments. Several QTLs for lobed leaflets were detected and most of them were tightly linked together on Chromosome 3. However, only one major QTL, which explained the largest phenotypic variation (27.7-69.5%), was stably detected under two different environments using both R and Q methods. In the two main stable QTLs regions on chromosomes 3 and 10, candidate genes for regulating the molecular mechanism of different leaflet shapes were detected by functional annotation. The overlap of major QTLs under different environments indicated that the present map would be good enough for precisely mapping genes, and both the QTL analysis and gene prediction were useful for investigating the mechanism of leaf development in mung bean or legumes.

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Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Vigna-Leaf_shape-Wang-2020
Featuremaps
This publication contains information about 1 maps:
Map Name
Vigna-Dahuaye/Jilyu9-1-RIL
Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
DahuayeDahuayeaccession
Jilyu 9-1Jilyu 9-1accession
Dahuaye/Jilyu9-1-RILDahuaye/Jilyu9-1-RILpopulation
Properties
Additional details for this publication include:
Property NameValue
CopyrightCopyright © 2020 Wang, Li, Liu, Yuan, Wang, Chen, Chen, Cheng and Wang.
Publication ModelElectronic-eCollection
ISSN1664-8021
pISSN1664-8021
Publication Date2020
Journal AbbreviationFront Genet
DOI10.3389/fgene.2020.01032
Elocation10.3389/fgene.2020.01032
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountrySwitzerland