Genome-Wide Association and Prediction of Male and Female Floral Hybrid Potential Traits in Elite Spring Bread Wheat Genotypes

cg.contactS.El-Hanafi@cgiar.orgen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerMohammed V University - UM5en_US
cg.contributor.centerMohammed V University, Faculty of Science - UM5 - FSRen_US
cg.contributor.centerUniversity of Jordan, Faculty of Agriculture - JU - Agricultureen_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.coverage.countryMAen_US
cg.coverage.regionNorthern Africaen_US
cg.creator.idKehel, Zakaria: 0000-0002-1625-043Xen_US
cg.creator.idTadesse, Wuletaw: 0000-0003-1175-3502en_US
cg.identifier.doihttps://dx.doi.org/10.3390/plants10050895en_US
cg.isijournalISI Journalen_US
cg.issn2223-7747en_US
cg.issue5en_US
cg.journalPlantsen_US
cg.subject.agrovocwheaten_US
cg.subject.agrovocgenomic selectionen_US
cg.subject.agrovocgwasen_US
cg.volume10en_US
dc.contributorCherkaoui, Souaden_US
dc.contributorKehel, Zakariaen_US
dc.contributorAl-Abdallat, Ayeden_US
dc.contributorTadesse, Wuletawen_US
dc.creatorEl-Hanafi, Samiraen_US
dc.date.accessioned2021-09-27T16:57:48Z
dc.date.available2021-09-27T16:57:48Z
dc.description.abstractHybrid wheat breeding is one of the most promising technologies for further sustainable yield increases. However, the cleistogamous nature of wheat displays a major bottleneck for a successful hybrid breeding program. Thus, an optimized breeding strategy by developing appropriate parental lines with favorable floral trait combinations is the best way to enhance the outcrossing ability. This study, therefore, aimed to dissect the genetic basis of various floral traits using genome-wide association study (GWAS) and to assess the potential of genome-wide prediction (GP) for anther extrusion (AE), visual anther extrusion (VAE), pollen mass (PM), pollen shedding (PSH), pollen viability (PV), anther length (AL), openness of the flower (OPF), duration of floret opening (DFO) and stigma length. To this end, we employed 196 ICARDA spring bread wheat lines evaluated for three years and genotyped with 10,477 polymorphic SNP. In total, 70 significant markers were identified associated to the various assessed traits at FDR 0.05 contributing a minor to large proportion of the phenotypic variance (8–26.9%), affecting the traits either positively or negatively. GWAS revealed multi-marker-based associations among AE, VAE, PM, OPF and DFO, most likely linked markers, suggesting a potential genomic region controlling the genetic association of these complex traits. Of these markers, Kukri_rep_c103359_233 and wsnp_Ex_rep_c107911_91350930 deserve particular attention. The consistently significant markers with large effect could be useful for marker-assisted selection. Genomic selection revealed medium to high prediction accuracy ranging between 52% and 92% for the assessed traits with the least and maximum value observed for stigma length and visual anther extrusion, respectively. This indicates the feasibility to implement genomic selection to predict the performance of hybrid floral traits with high reliability.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/cb0e897c19184f56d63656363c9c0068/v/6a90a7e26fed06c86bcd4ac217c48a53en_US
dc.identifier.citationSamira El-Hanafi, Souad Cherkaoui, Zakaria Kehel, Ayed Al-Abdallat, Wuletaw Tadesse. (29/4/2021). Genome-Wide Association and Prediction of Male and Female Floral Hybrid Potential Traits in Elite Spring Bread Wheat Genotypes. Plants, 10 (5), pp. 1-16.en_US
dc.identifier.statusOpen accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/66150
dc.languageenen_US
dc.publisherMDPIen_US
dc.rightsCC-BY-4.0en_US
dc.sourcePlants;10,(2021) Pagination 1-16en_US
dc.subjecthybriden_US
dc.subjectfloral traitsen_US
dc.titleGenome-Wide Association and Prediction of Male and Female Floral Hybrid Potential Traits in Elite Spring Bread Wheat Genotypesen_US
dc.typeJournal Articleen_US
dcterms.available2021-04-29en_US
dcterms.extent1-16en_US
mel.impact-factor3.935en_US

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