Genetic Dissection of Drought Tolerance of Elite Bread Wheat (Triticum aestivum L.) Genotypes Using Genome Wide Association Study in Morocco

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cg.contributor.affiliationInternational Center for Agricultural Research in the Dry Areasen
cg.contributor.affiliationHassan II Universityen
cg.contributor.donorInternational Center for Agricultural Research in the Dry Areasen
cg.contributor.initiativeAccelerated Breeding
cg.contributor.initiativeFragility to Resilience in Central and West Asia and North Africa
cg.coverage.countryMorocco
cg.coverage.iso3166-alpha2MA
cg.coverage.regionNorthern Africa
cg.creator.identifierZakaria, EL Gataa: 0000-0002-2935-2232
cg.creator.identifierTadesse, Wuletaw: 0000-0003-1175-3502
cg.identifier.doihttps://doi.org/10.3390/plants11202705en
cg.identifier.urlhttps://www.mdpi.com/article/10.3390/plants11202705/s1en
cg.isijournalISI Journalen
cg.issn2223-7747en
cg.issue20en
cg.journalPlantsen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.actionAreaGenetic Innovation
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume11en
dc.contributor.authorZakaria, EL Gataaen
dc.contributor.authorKarima, Samiren
dc.contributor.authorTadesse, Wuletawen
dc.date.accessioned2022-11-10T23:18:16Zen
dc.date.available2022-11-10T23:18:16Zen
dc.identifier.urihttps://hdl.handle.net/10568/125415
dc.titleGenetic Dissection of Drought Tolerance of Elite Bread Wheat (Triticum aestivum L.) Genotypes Using Genome Wide Association Study in Moroccoen
dcterms.abstractDrought is one of the most important yield-limiting factors in Morocco. Identification and deployment of drought-tolerant wheat varieties are important to cope with the challenge of terminal moisture stress and increase wheat productivity. A panel composed of 200 elite spring bread wheat genotypes was phenotyped for yield and agronomic traits for 2 years (2020 and 2021) in Morocco under rainfed and irrigated environments. The panel was genotyped using 20K SNPs and, after filtration, a total of 15,735 SNP markers were used for a genome-wide association study (GWAS) using a mixed linear model (MLM) to identify marker-trait associations (MTA) and putative genes associated with grain yield and yield-related traits under rainfed and irrigated conditions. Significant differences were observed among the elite genotypes for grain yield and yield-related traits. Grain yield performance ranged from 0.97 to 6.16 t/ha under rainfed conditions at Sidi Al-Aidi station and from 3.31 to 9.38 t/h under irrigated conditions at Sidi Al-Aidi station, while Grain yield at Merchouch station ranged from 2.32 to 6.16 t/h under rainfed condition. A total of 159 MTAs (p < 0.001) and 46 genes were discovered, with 67 MTAs recorded under rainfed conditions and 37 MTAs recorded under irrigated conditions at the Sidi Al-Aidi station, while 55 MTAs were recorded under rainfed conditions at Merchouch station. The marker ‘BobWhite_c2988_493’ on chromosome 2B was significantly correlated with grain yield under rainfed conditions. Under irrigated conditions, the marker ‘AX-94653560’ on chromosome 2D was significantly correlated with grain yield at Sidi Al-Aidi station. The maker ‘RAC875_c17918_321’ located on chromosome 4A, associated with grain yield was linked with the gene TraesCS4A02G322700, which encodes for F-box domain-containing protein. The markers and candidate genes discovered in this study should be further validated for their potential use in marker-assisted selection to generate high-yielding wheat genotypes with drought toleranceen
dcterms.accessRightsOpen Access
dcterms.available2022-10-13
dcterms.bibliographicCitationEL Gataa Zakaria, Samir Karima, Wuletaw Tadesse. (13/10/2022). Genetic Dissection of Drought Tolerance of Elite Bread Wheat (Triticum aestivum L. ) Genotypes Using Genome Wide Association Study in Morocco. Plants, 11 (20).en
dcterms.formatPDFen
dcterms.issued1970-01-01
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPIen
dcterms.subjectbiodiversityen
dcterms.subjectfood securityen
dcterms.subjecthealthen
dcterms.subjectnutritionen
dcterms.subjectwheaten
dcterms.subjectdrought stressen
dcterms.subjectgwasen
dcterms.subjectmtaen
dcterms.subjectenvironmental healthen
dcterms.subjectgoal 2 zero hungeren
dcterms.typeJournal Article

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