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Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection

dc.contributor.authorFatokun, C.
dc.contributor.authorGirma, G.
dc.contributor.authorAbberton, M.T.
dc.contributor.authorGedil, M.
dc.contributor.authorUnachukwu, N.N.
dc.contributor.authorOyatomi, O.
dc.contributor.authorYusuf, M.
dc.contributor.authorRabbi, I.
dc.contributor.authorBoukar, O.
dc.date.accessioned2019-12-04T11:26:32Z
dc.date.available2019-12-04T11:26:32Z
dc.date.issued2018-10-30
dc.identifier.citationFatokun, C., Girma, G., Abberton, M., Gedil, M., Unachukwu, N., Oyatomi, O., ... & Boukar, O. (2018). Genetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection. Scientific Reports, 8, 1-10.
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/20.500.12478/4641
dc.descriptionOpen Access Journal; Published online: 30 Oct 2018
dc.description.abstractThe International Institute of Tropical Agriculture maintains the world’s largest collection of cowpea germplasm of over 15,000 accessions. A sub-set of 298 lines from the loosely composed mini core collection of 370 landraces were genotyped based on genotyping by sequencing (GBS). Ward’s minimum variance hierarchical cluster analysis, model-based ancestry analysis and discriminant analysis of principal component (DAPC) were carried out on this sub-set. Three clusters were identified by the different clustering methods. Principal component analysis further supported the three clusters especially when accessions are scattered along the axes of the first two principal components. The first two principal components explained a total of 22.30% of the variation. Cluster one comprises 115 accessions from the largest number of countries and has the highest gene diversity, heterozygosity and polymorphic information content (PIC) values. Cluster two is made up of 102 accessions, 90 percent of which are from West and Central Africa. Analysis of molecular variance shows that the most variation is among accessions and lowest among clusters. No cluster is made exclusively of accessions from a single country. Based on SNP markers, the sub set of cowpea mini core germplasm collection used in this study encompasses the diversity in the crop.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-10
dc.language.isoen
dc.rightsCC-BY-4.0
dc.subjectCowpeas
dc.subjectVigna Unguiculata
dc.subjectFood Security
dc.subjectFodder Crops
dc.subjectGrain Legumes
dc.subjectGene Banks
dc.titleGenetic diversity and population structure of a mini-core subset from the world cowpea (Vigna unguiculata (L.) Walp.) germplasm collection
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpGrain Legumes and Dryland Cereals
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationPurdue University
cg.coverage.regionAfrica
cg.coverage.regionAsia
cg.coverage.regionEast Asia
cg.coverage.regionEast Africa
cg.coverage.regionWest Africa
cg.coverage.countryChina
cg.coverage.countryKenya
cg.coverage.countryNiger
cg.coverage.countryNigeria
cg.creator.identifierChristian Fatokun: 0000-0002-8428-7939
cg.creator.identifierMichael Abberton: 0000-0003-2555-9591
cg.creator.identifierMelaku Gedil: 0000-0002-6258-6014
cg.creator.identifierIsmail Rabbi: 0000-0001-9966-2941
cg.researchthemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectCowpea
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.journalScientific Reports
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid101356
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1038/s41598-018-34555-9


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