QTL delineation for five fiber quality traits based on an intra-specific Gossypium hirsutum L. recombinant inbred line population

Publication Overview
TitleQTL delineation for five fiber quality traits based on an intra-specific Gossypium hirsutum L. recombinant inbred line population
AuthorsJia X, Wang H, Pang C, Ma Q, Su J, Wei H, Song M, Fan S, Yu S
TypeJournal Article
Journal NameMolecular genetics and genomics : MGG
Year2018
CitationJia X, Wang H, Pang C, Ma Q, Su J, Wei H, Song M, Fan S, Yu S. QTL delineation for five fiber quality traits based on an intra-specific Gossypium hirsutum L. recombinant inbred line population. Molecular genetics and genomics : MGG. 2018 Feb 08.

Abstract

Gossypium hirsutum L. is the most important fiber crop worldwide and contributes to more than 95% of global cotton production. Marker-assisted selection (MAS) is an effective approach for improving fiber quality, and quantitative trait loci (QTL) mapping of fiber quality traits is important for cotton breeding. In this study, a permanent intra-specific recombinant inbred line (RIL) population containing 137 families was used for fiber quality testing. Based on a previously reported high-density genetic map with an average marker distance of 0.63 cM, 186 additive QTLs were obtained for five fiber quality traits over five consecutive years, including 39 for fiber length (FL), 36 for fiber strength (FS), 50 for fiber uniformity (FU), 33 for micronaire (MC) and 28 for fiber elongation (FE). Three stable QTLs, qMC-A4-1, qMC-D2-3 and qFS-D9-1, were detected in four datasets, and another eight stable QTLs, qMC-A4-2, qMC-D11-2, qFU-A9-1, qFU-A10-4, qFS-D11-1, qFL-D9-2, qFL-D11-1 and qFE-A3-2, were detected in three datasets. The annotated genes in these 11 stable QTLs were collected, and these genes included many transcription factors with functions during fiber development. 33 QTL coincidence regions were found, and these involved nearly half of the total QTLs. Four chromosome regions containing at least 6 QTLs were promising for fine mapping. In addition, 41 pairs of epistatic QTLs (e-QTLs) were screened, including 6 for FL, 30 for FS, 2 for FU and 3 for MC. The identification of stable QTLs adds valuable information for further QTL fine mapping and gene positional cloning for fiber quality genetic detection and provides useful markers for further molecular breeding in enhancing fiber quality.

Features
This publication contains information about 232 features:
Feature NameUniquenameType
micronaireqMIC.CG-RIL_ch23.cb.3QTL
micronaireqMIC.CG-RIL_ch24.ay11.1QTL
micronaireqMIC.CG-RIL_ch24.ay11.2QTL
micronaireqMIC.CG-RIL_ch24.ay13QTL
micronaireqMIC.CG-RIL_ch24.ay15QTL
micronaireqMIC.CG-RIL_ch26.ay13QTL
micronaireqMIC.CG-RIL_ch26.ay15QTL

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
CG-RIL-2018
Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint-Electronic
ISSN1617-4623
eISSN1617-4623
Publication Date2018 Feb 08
Journal AbbreviationMol. Genet. Genomics
DOI10.1007/s00438-018-1424-7
Elocation10.1007/s00438-018-1424-7
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountryGermany