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dc.contributorNajar, Asmaen_US
dc.contributorUdupa, Sripada M.en_US
dc.contributorKumari, Safaaen_US
dc.contributorAmri, Ahmeden_US
dc.contributorRezgui, Salahen_US
dc.contributorEl Felah, Mouldien_US
dc.contributorTsivelikas, Athanasiosen_US
dc.creatorBen Ghanem, Hajeren_US
dc.identifier.citationHajer Ben Ghanem, Asma Najar, Sripada M. Udupa, Safaa Kumari, Ahmed Amri, Salah Rezgui, Mouldi El Felah, Athanasios Tsivelikas. (17/1/2019). Exploiting intra-cultivar variation to select for Barley yellow dwarf virus-PAV (BYDV-PAV) resistance in barley. Canadian Journal of Plant Science, 98 (4), pp. 930-946.en_US
dc.description.abstractSelection within elite barley cultivars is assumed to be ineffective due to the belief that inbred cultivars are highly homogeneous. The objective of the present work was to evaluate a selection procedure (Honeycomb design) applied within five barley cultivars (Manel, Rihane, Kounouz, Lemsi, and Imen) and two Tunisian landraces (Ardhaoui and Djebali) under ultra-low plant density (1.2 plants m⁻²) towards selecting high-performance lines with resistance to Barley yellow dwarf virus-PAV (BYDV-PAV). Lines selected through this process were further field-evaluated in hill plots under artificial BYDV-PAV inoculation and uninoculated control conditions during the 2016–2017 cropping season. Artificial inoculation in the field caused a severe reduction in agronomic performance traits, with yield loss reaching around 60%. However, two lines (IH16-H1 and IH4-L0) originating from cultivar Imen were significantly superior over the mother variety in the control field, showing at the same time minimum yield loss after BYDV-PAV inoculation not exceeding 10%, similar to the resistant check. Genotyping of the lines for the Ryd2 and Ryd3 resistance genes and assessment of visual symptoms in the field associated with reduction in yield revealed an additive effect of the genes conferring resistance to BYDV-PAV. However, there were lines with genotypic patterns that did not match the patterns of the source material, providing insights for exploitable intracultivar diversity within the barley cultivars and landraces assessed.en_US
dc.languageen, fren_US
dc.publisherNRC Research Press (Canadian Science Publishing)en_US
dc.sourceCanadian Journal of Plant Science;98,(2018) Pagination 930,946en_US
dc.subjectintra-cultivar variationen_US
dc.subjectsingle plant selectionen_US
dc.subjectultra-low plant densityen_US
dc.titleExploiting intra-cultivar variation to select for Barley yellow dwarf virus-PAV (BYDV-PAV) resistance in barleyen_US
dc.typeJournal Articleen_US
cg.creator.idUdupa, Sripada M.: 0000-0003-4225-7843en_US
cg.creator.idKumari, Safaa: 0000-0002-4492-6257en_US
cg.creator.idAmri, Ahmed: 0000-0003-0997-0276en_US
cg.creator.idTsivelikas, Athanasios: 0000-0001-6267-5079en_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Agricultural Research Institute of Tunisia - INRATen_US
cg.contributor.centerUniversity of Carthage - UCAR Tunisen_US
cg.contributor.centerNational Agronomic Institute of Tunisia - INATen_US
cg.contributor.centerThe Institution of Research and Higher Agricultural Education - IRESAen_US
cg.contributor.crpCGIAR Research Program on Genebanksen_US
cg.contributor.funderGlobal Crop Diversity Trust - GCDTen_US
cg.contributor.projectCGIAR Research Program on Genebanks - Phase IIen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
dc.identifier.statusOpen accessen_US

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