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The pattern of genetic variability in a core collection of 2,021 cowpea accessions

dc.contributor.authorFiscus, C.J.
dc.contributor.authorHerniter, I.A.
dc.contributor.authorTchamba, M.
dc.contributor.authorPaliwal, R.
dc.contributor.authorMuñoz-Amatriaín, M.
dc.contributor.authorRoberts, P.A.
dc.contributor.authorAbberton, M.
dc.contributor.authorAlaba, O.
dc.contributor.authorClose, T.J.
dc.contributor.authorOyatomi, O.
dc.contributor.authorKoenig, D.
dc.date.accessioned2024-05-13T09:27:01Z
dc.date.available2024-05-13T09:27:01Z
dc.date.issued2024-05-06
dc.identifier.citationFiscus, C.J., Herniter, I.A., Tchamba, M., Paliwal, R., Muñoz-Amatriaín, M., Roberts, P.A., ... & Koenig, D. (2024). The pattern of genetic variability in a core collection of 2,021 cowpea accessions. G3: Genes, Genomes, Genetics, jkae071, 1-15.
dc.identifier.issn2160-1836
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8476
dc.description.abstractCowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting a core subset of the world's largest cowpea collection, held at the International Institute of Tropical Agriculture (IITA) in Ibadan, Nigeria. We used this dataset to examine genetic variation and population structure in worldwide cowpea. We confirm that the primary pattern of population structure is two geographically defined subpopulations originating in West and East Africa, respectively, and that population structure is associated with shifts in phenotypic distribution. Furthermore, we establish the cowpea core collection as a resource for genome-wide association studies by mapping the genetic basis of several phenotypes, with a focus on seed coat pigmentation patterning and color. We anticipate that the genotyped IITA Cowpea Core Collection will serve as a powerful tool for mapping complex traits, facilitating the acceleration of breeding programs to enhance the resilience of this crop in the face of rapid global climate change.
dc.description.sponsorshipInternational Maize and Wheat Improvement Center (CIMMYT)
dc.description.sponsorshipCrop Trust
dc.format.extentFISCUS:2024
dc.language.isoen
dc.subjectCowpeas
dc.subjectPopulation Structure
dc.subjectGenome-Wide Association Studies
dc.subjectSeed
dc.subjectPigmentation
dc.titleThe pattern of genetic variability in a core collection of 2,021 cowpea accessions
dc.typeJournal Article
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.contributor.crpGenebanks
cg.contributor.crpGrain Legumes
cg.contributor.affiliationUniversity of California
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversidad de León
cg.contributor.affiliationRutgers University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidFISCUS:2024
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAflatoxin
cg.iitasubjectCowpea
cg.iitasubjectFood Security
cg.iitasubjectFood Systems
cg.iitasubjectPlant Breeding
cg.journalG3-Genes Genomes Genetics
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1093/g3journal/jkae071
cg.iitaauthor.identifierRajneesh Paliwal: 0000-0001-6493-3289
cg.iitaauthor.identifierMichael Abberton: 0000-0003-2555-9591
cg.iitaauthor.identifierOlaniyi Oyatomi: 0000-0003-3094-374X
cg.futureupdate.requiredNo
cg.identifier.issuejkae071


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