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dc.contributorTan, Mui-Kengen_US
dc.contributorEl Bouhssini, Mustaphaen_US
dc.contributorWildman, Ossieen_US
dc.contributorJighly, Abdul-Qaderen_US
dc.contributorTadesse, Wuletawen_US
dc.contributorOgbonnaya, Francis Chuksen_US
dc.creatorEmebiri, Livinus C.en_US
dc.identifier.citationLivinus C. Emebiri, Mui-Keng Tan, Mustapha El Bouhssini, Ossie Wildman, Abdul-Qader Jighly, Wuletaw Tadesse, Francis Chuks Ogbonnaya. (28/2/2017). QTL mapping identifies a major locus for resistance in wheat to Sunn pest (Eurygaster integriceps) feeding at the vegetative growth stage. TAG Theoretical and Applied Genetics, 130 (2), pp. 309-318.en_US
dc.description.abstractSunn pest (Eurygaster integriceps Puton) is the most destructive insect pest of bread wheat and durum wheat in West and Central Asia and East Europe. Breeding for resistance at the vegetative stage of growth is vital in reducing the damage caused by overwintered adult populations that feed on shoot and leaves of seedlings, and in reducing the next generation of pest populations (nymphs and adults), which can cause damage to grain quality by feeding on spikes. In the present study, two doubled haploid (DH) populations involving resistant landraces from Afghanistan were genotyped with the 90k SNP iSelect assay and candidate gene-based KASP markers. The DH lines and parents were phenotyped for resistance to Sunn pest feeding, using artificial infestation cages at Terbol station, in Lebanon, over three years. Quantitative trait locus (QTL) analysis identified a single major locus on chromosome 4BS in the two populations, with the resistance allele derived from the landrace accessions, IG139431 and IG139883. The QTL explained a maximum of 42 % of the phenotypic variation in the Cham6 × IG139431 and 56 % in the Cham6 × IG139883 populations. SNP markers closest to the QTL showed high similarity to rice genes that putatively encode proteins for defense response to herbivory and wounding. The markers were validated in a large, unrelated population of parental wheat genotypes. All wheat lines carrying the ‘C–G’ haplotype at the identified SNPs were resistant, suggesting that selection based on a haplotype of favourable alleles would be effective in predicting resistance status of unknown genotypes.en_US
dc.publisherSpringer Verlag (Germany)en_US
dc.sourceTAG Theoretical and Applied Genetics;130,(2016) Pagination 309,318en_US
dc.subjectpests and diseaseen_US
dc.titleQTL mapping identifies a major locus for resistance in wheat to Sunn pest (Eurygaster integriceps) feeding at the vegetative growth stageen_US
dc.typeJournal Articleen_US
cg.creator.idEl Bouhssini, Mustapha: 0000-0001-8945-3126en_US
cg.creator.idTadesse, Wuletaw: 0000-0003-1175-3502en_US
cg.subject.agrovocplant breedingen_US
cg.contributor.centerCharles Sturt University - CSUen_US
cg.contributor.centerNSW Department of Primary Industries - NSW-DPIen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerGrains Research and Development Corporation - GRDCen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_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
cg.coverage.regionWestern Asiaen_US
cg.coverage.regionSouthern Asiaen_US
dc.identifier.statusLimited accessen_US

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