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dc.contributorSingh, Sukhwinderen_US
dc.contributorDeng, Zhiyingen_US
dc.contributorHe, Xinyaoen_US
dc.contributorKehel, Zakariaen_US
dc.contributorPrakash Singh, Ravien_US
dc.creatorKumar Singh, Pawanen_US
dc.identifier.citationPawan Kumar Singh, Sukhwinder Singh, Zhiying Deng, Xinyao He, Zakaria Kehel, Ravi Prakash Singh. (31/10/2019). Characterization of QTLs for Seedling Resistance to Tan Spot and Septoria Nodorum Blotch in the PBW343/Kenya Nyangumi Wheat Recombinant Inbred Lines Population. International Journal of Molecular Sciences, 20 (21), pp. 1-12.en_US
dc.description.abstractTan spot (TS) and Septoria nodorum blotch (SNB) induced by Pyrenophora tritici-repentis and Parastagonospora nodorum, respectively, cause significant yield losses and adversely affect grain quality. The objectives of this study were to decipher the genetics and map the resistance to TS and SNB in the PBW343/Kenya Nyangumi (KN) population comprising 204 F6 recombinant inbred lines (RILs). Disease screening was performed at the seedling stage under greenhouse conditions. TS was induced by P. tritici-repentis isolate MexPtr1 while SNB by P. nodorum isolate MexSN1. Segregation pattern of the RILs indicated that resistance to TS and SNB in this population was quantitative. Diversity Array Technology (DArTs) and simple sequence repeats (SSRs) markers were used to identify the quantitative trait loci (QTL) for the diseases using inclusive composite interval mapping (ICIM). Seven significant additive QTLs for TS resistance explaining 2.98 to 23.32% of the phenotypic variation were identified on chromosomes 1A, 1B, 5B, 7B and 7D. For SNB, five QTLs were found on chromosomes 1A, 5A, and 5B, explaining 5.24 to 20.87% of the phenotypic variation. The TS QTL on 1B chromosome coincided with the pleiotropic adult plant resistance (APR) gene Lr46/Yr29/Pm39. This is the first report of the APR gene Lr46/Yr29/Pm39 contributing to TS resistance.en_US
dc.sourceInternational Journal of Molecular Sciences;20,(2019) Pagination 1-12en_US
dc.subjecthost-pathogen interactionen_US
dc.subjectparastagonospora nodorumen_US
dc.titleCharacterization of QTLs for Seedling Resistance to Tan Spot and Septoria Nodorum Blotch in the PBW343/Kenya Nyangumi Wheat Recombinant Inbred Lines Populationen_US
dc.typeJournal Articleen_US
cg.creator.idKehel, Zakaria: 0000-0002-1625-043Xen_US
cg.subject.agrovocpyrenophora tritici-repentisen_US
cg.subject.agrovoctriticum aestivumen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Maize and Wheat Improvement Center - CIMMYTen_US
cg.contributor.centerShandong Agricultural University - SDAUen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_US
cg.contributor.funderInternational Maize and Wheat Improvement Center - CIMMYTen_US
cg.contributor.projectCRP WHEAT Phase IIen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.isijournalISI Journalen_US
dc.identifier.statusOpen accessen_US
cg.journalInternational Journal of Molecular Sciencesen_US

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