The genetics of domestication of yardlong bean, Vigna unguiculata (L.) Walp. ssp. unguiculata cv.-gr. sesquipedalis

Publication Overview
TitleThe genetics of domestication of yardlong bean, Vigna unguiculata (L.) Walp. ssp. unguiculata cv.-gr. sesquipedalis
AuthorsKongjaimun A, Kaga A, Tomooka N, Somta P, Vaughan DA, Srinives P
TypeJournal Article
Journal NameAnnals of botany
Volume109
Issue6
Year2012
Page(s)1185-200
CitationKongjaimun A, Kaga A, Tomooka N, Somta P, Vaughan DA, Srinives P. The genetics of domestication of yardlong bean, Vigna unguiculata (L.) Walp. ssp. unguiculata cv.-gr. sesquipedalis. Annals of botany. 2012 May; 109(6):1185-200.

Abstract

BACKGROUND AND AIMS
The genetics of domestication of yardlong bean [Vigna unguiculata (L.) Walp. ssp. unguiculata cv.-gr. sesquipedalis] is of particular interest because the genome of this legume has experienced divergent domestication. Initially, cowpea was domesticated from wild cowpea in Africa; in Asia a vegetable form of cowpea, yardlong bean, subsequently evolved from cowpea. Information on the genetics of domestication-related traits would be useful for yardlong bean and cowpea breeding programmes, as well as comparative genome study among members of the genus Vigna. The objectives of this study were to identify quantitative trait loci (QTLs) for domestication-related traits in yardlong bean and compare them with previously reported QTLs in closely related Vigna.

METHODS
Two linkage maps were developed from BC(1)F(1) and F(2) populations from the cross between yardlong bean (V. unguiculata ssp. unguiculata cv.-gr. sesquipedalis) accession JP81610 and wild cowpea (V. unguiculata ssp. unguiculata var. spontanea) accession TVnu457. Using these linkage maps, QTLs for 24 domestication-related traits were analysed and mapped. QTLs were detected for traits related to seed, pod, stem and leaf.

KEY RESULTS
Most traits were controlled by between one and 11 QTLs. QTLs for domestication-related traits show co-location on several narrow genomic regions on almost all linkage groups (LGs), but especially on LGs 3, 7, 8 and 11. Major QTLs for sizes of seed, pod, stem and leaf were principally located on LG7. Pleiotropy or close linkage of genes for the traits is suggested in these chromosome regions.

CONCLUSIONS
This is the first report of QTLs for domestication-related traits in yardlong bean. The results provide a foundation for marker-assisted selection of domestication-related QTLs in yardlong bean and enhance understanding of domestication in the genus Vigna.

Features
This publication contains information about 221 features:
Feature NameUniquenameType
CP_00066CP_00066genetic_marker
VR2094VR2094genetic_marker
Epicotyl lengthqEPLN.JP81610/JP89083.LG10.BC1F1QTL
Epicotyl lengthqEPLN.JP81610/JP89083.LG02.BC1F1QTL
Epicotyl lengthqEPLN.JP81610/JP89083.LG04.BC1F1QTL
Epicotyl lengthqEPLN.JP81610/JP89083.LG06.BC1F1QTL
Epicotyl lengthqEPLN.JP81610/JP89083.LG07.BC1F1QTL
Epicotyl lengthqEPLN.JP81610/JP89083.LG09.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG10.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG11.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG04.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG07.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG08.BC1F1QTL
Days to first flowerqDFFL.JP81610/JP89083.LG09.BC1F1QTL
Leaf lengthqLFLN.JP81610/JP89083.LG11.BC1F1QTL
Leaf lengthqLFLN.JP81610/JP89083.LG03.BC1F1QTL
Leaf lengthqLFLN.JP81610/JP89083.LG06.BC1F1QTL
Leaf lengthqLFLN.JP81610/JP89083.LG07.BC1F1QTL
Leaf lengthqLFLN.JP81610/JP89083.LG08.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG01.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG11.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG03.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG06.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG07.BC1F1QTL
Leaf widthqLFWD.JP81610/JP89083.LG08.BC1F1QTL

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Cowpea-Domestication_traits-Kongjaimun-2012
Featuremaps
This publication contains information about 1 maps:
Map Name
Cowpea-JP81610/JP89083-F2
Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint-Electronic
ISSN1095-8290
eISSN1095-8290
Publication Date2012 May
Journal AbbreviationAnn. Bot.
DOI10.1093/aob/mcs048
Elocation10.1093/aob/mcs048
Language Abbreng
Publication TypeJournal Article
Journal CountryEngland
LanguageEnglish
Publication TypeResearch Support, Non-U.S. Gov't