Identification of Quantitative Trait Loci Controlling Root and Shoot Traits Associated with Drought Tolerance in a Lentil (Lens culinaris Medik.) Recombinant Inbred Line Population

Publication Overview
TitleIdentification of Quantitative Trait Loci Controlling Root and Shoot Traits Associated with Drought Tolerance in a Lentil (Lens culinaris Medik.) Recombinant Inbred Line Population
AuthorsIdrissi O, Udupa SM, De Keyser E, McGee RJ, Coyne CJ, Saha GC, Muehlbauer FJ, Van Damme P, De Riek J
TypeJournal Article
Journal NameFrontiers in plant science
Volume7
Year2016
Page(s)1174
CitationIdrissi O, Udupa SM, De Keyser E, McGee RJ, Coyne CJ, Saha GC, Muehlbauer FJ, Van Damme P, De Riek J. Identification of Quantitative Trait Loci Controlling Root and Shoot Traits Associated with Drought Tolerance in a Lentil (Lens culinaris Medik.) Recombinant Inbred Line Population. Frontiers in plant science. 2016; 7:1174.

Abstract

Drought is one of the major abiotic stresses limiting lentil productivity in rainfed production systems. Specific rooting patterns can be associated with drought avoidance mechanisms that can be used in lentil breeding programs. In all, 252 co-dominant and dominant markers were used for Quantitative Trait Loci (QTL) analysis on 132 lentil recombinant inbred lines based on greenhouse experiments for root and shoot traits during two seasons under progressive drought-stressed conditions. Eighteen QTLs controlling a total of 14 root and shoot traits were identified. A QTL-hotspot genomic region related to a number of root and shoot characteristics associated with drought tolerance such as dry root biomass, root surface area, lateral root number, dry shoot biomass and shoot length was identified. Interestingly, a QTL (QRSratioIX-2.30) related to root-shoot ratio, an important trait for drought avoidance, explaining the highest phenotypic variance of 27.6 and 28.9% for the two consecutive seasons, respectively, was detected. This QTL was closed to the co-dominant SNP marker TP6337 and also flanked by the two SNP TP518 and TP1280. An important QTL (QLRNIII-98.64) related to lateral root number was found close to TP3371 and flanked by TP5093 and TP6072 SNP markers. Also, a QTL (QSRLIV-61.63) associated with specific root length was identified close to TP1873 and flanked by F7XEM6b SRAP marker and TP1035 SNP marker. These two QTLs were detected in both seasons. Our results could be used for marker-assisted selection in lentil breeding programs targeting root and shoot characteristics conferring drought avoidance as an efficient alternative to slow and labor-intensive conventional breeding methods.

Features
This publication contains information about 286 features:
Feature NameUniquenameType
Stem dry weightqSHWT.ILL6002_x_ILL5888.LGV.2013QTL
Stem dry weightqSHWT.ILL6002_x_ILL5888.LGV.2014QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGIV.2013.1QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGIV.2013.2QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGIV.2014QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVI.2013QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVI.2014QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVII.2013.1QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVII.2013.2QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVII.2014.1QTL
Stem lengthqSTEMLG.ILL6002_x_ILL5888.LGVII.2014.2QTL

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Lentil-Root_Shoot_Drought-Idrissi-2016
Featuremaps
This publication contains information about 1 maps:
Map Name
Lentil-ILL6002_x_ILL5888-RIL-2016
Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
ILL6002ILL6002accession
ILL5888ILL5888accession
ILL6002_x_ILL5888ILL6002_x_ILL5888population
Properties
Additional details for this publication include:
Property NameValue
Publication ModelElectronic-eCollection
ISSN1664-462X
eISSN1664-462X
Publication Date2016
Journal AbbreviationFront Plant Sci
DOI10.3389/fpls.2016.01174
Elocation10.3389/fpls.2016.01174
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountrySwitzerland