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dc.contributorMalhotra, Rajinderen_US
dc.contributorBett, K.en_US
dc.contributorTar'an, B.en_US
dc.contributorBueckert, R.en_US
dc.contributorWarkentin, T. D.en_US
dc.creatorRehman, A. U.en_US
dc.identifier.citationA. U. Rehman, Rajinder Malhotra, K. Bett, B. Tar'an, R. Bueckert, T. D. Warkentin. (1/3/2011). Mapping QTL Associated with Traits Affecting Grain Yield in Chickpea (Cicer arietinum L. ) under Terminal Drought Stress. Crop Science, 51 (2), pp. 450-463.en_US
dc.description.abstractThe aim of this study was to evaluate a set of recombinant inbred lines (RILs) for agronomic and physiological traits under drought conditions and to locate quantitative trait loci (QTL) associated with them. This study used a RIL population derived from a cross between drought tolerant (ILC 588) and susceptible (ILC 3279) genotypes. The population consisting of 155 RILs was grown under drought conditions in the field at Tel Hadya, Syria, in 2006 and 2007 and at Breda, Syria, in 2007. A genetic map consisting of eight linkage groups was developed using 97 simple sequence repeat (SSR) markers. The results revealed that high harvest index (HI), early flowering, and early maturity were the important attributes contributing to higher grain yield under drought. Higher stomatal conductance (gs) and cooler canopies (canopy temperature minus air temperature [Tc–Ta]) can also lead to better performance under drought conditions. Quantitative trait locus analysis identified 15 genomic regions significantly associated with various traits affecting drought tolerance in chickpea. Important QTL detected in this study included two QTL for HI explaining 38% of the total phenotypic variability of the trait, four QTL for flowering explaining 45%, and three QTL for maturity explaining 52% on a cumulative basis. Three QTL for gs and six QTL for Tc–Ta also detected explained 7 to 15% phenotypic variability individually. Two QTL (Q3‐1 and Q1‐1) on linkage group 3 (LG3) and LG1 showed effects on many traits related to drought. Hence, these regions can be further explored in future drought studies.en_US
dc.publisherCrop Science Society of Americaen_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourceCrop Science;51,(2011) Pagination 450,463en_US
dc.subjectlinkage mapen_US
dc.subjectrecombinant inbred linesen_US
dc.subjectascochyta blight resistanceen_US
dc.subjecttagged microsatellite sitesen_US
dc.subjectcarbon-isotope discriminationen_US
dc.titleMapping QTL Associated with Traits Affecting Grain Yield in Chickpea (Cicer arietinum L.) under Terminal Drought Stressen_US
dc.typeJournal Articleen_US
cg.subject.agrovocstomatal conductanceen_US
cg.contributor.centerUniversity of Saskatchewan - USASKen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
dc.identifier.statusTimeless limited accessen_US

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