Genetic diversity and population structure of an African yam bean (Sphenostylis stenocarpa) collection from IITA GenBank

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationJimma University
cg.contributor.affiliationEbonyi State University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.crpGrain Legumes
cg.contributor.donorEuropean Union
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1038/s41598-022-08271-4
cg.identifier.iitathemeBIOTECH & PLANT BREEDING
cg.isijournalISI Journal
cg.issn2045-2322
cg.issue1
cg.journalScientific Reports
cg.number4437
cg.reviewStatusPeer Review
cg.subject.iitaAGRONOMY
cg.subject.iitaFOOD SECURITY
cg.subject.iitaGRAIN LEGUMES
cg.subject.iitaNUTRITION
cg.subject.iitaPLANT BREEDING
cg.subject.iitaPLANT PRODUCTION
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 1 - No poverty
cg.subject.sdgSDG 2 - Zero hunger
cg.volume12
dc.contributor.authorShitta, N.S.
dc.contributor.authorUnachukwu, N.
dc.contributor.authorEdemodu, A.
dc.contributor.authorAbebe, A.T.
dc.contributor.authorOselebe, H.O.
dc.contributor.authorAbtew, W.G.
dc.date.accessioned2022-06-08T08:17:07Zen
dc.date.available2022-06-08T08:17:07Zen
dc.identifier.urihttps://hdl.handle.net/10568/119774
dc.titleGenetic diversity and population structure of an African yam bean (Sphenostylis stenocarpa) collection from IITA GenBanken
dcterms.abstractAfrican yam bean, AYB (Sphenostylis stenocarpa), is an underutilized legume of tropical Africa. AYB can boost food and nutritional security in sub-Saharan Africa through its nutrient-rich seeds and tubers. However, inadequate information on germplasm with desirable agro-morphological traits, including insufficient data at the genomic level, has prevented the full exploitation of its food and breeding potentials. Notably, assessing the genetic diversity and population structure in a species is a prerequisite for improvement and eventual successful exploitation. The present study evaluated the population structure and genetic diversity of 169 accessions from the International Institute of Tropical Agriculture (IITA) collection using 26 phenotypic characters and 1789 single nucleotide polymorphism (SNP) markers. The phenotypic traits and SNP markers revealed their usefulness in uniquely distinguishing each AYB accession. The hierarchical cluster of phenotypes grouped accessions into three sub-populations; SNPs analysis also clustered the accessions into three sub-populations. The genetic differentiation (FST) among the three sub-populations was sufficiently high (0.14–0.39) and significant at P = 0.001. The combined analysis revealed three sub-populations; accessions in sub-population 1 were high yielding, members in sub-population 2 showed high polymorphic loci and heterozygosity. This study provides essential information for the breeding and genetic improvement of AYB.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.available2022-03-15
dcterms.bibliographicCitationShitta, N.S., Unachukwu, N., Edemodu, A., Abebe, A.T., Oselebe, H.O. & Abtew, W.G. (2022). Genetic diversity and population structure of an African yam bean (Sphenostylis stenocarpa) collection from IITA GenBank. Scientific Reports, 12(1), 1-13.en
dcterms.extent1-13
dcterms.issued2022-03
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringer
dcterms.subjectsphenostylis stenocarpaen
dcterms.subjectfood securityen
dcterms.subjectnutritionen
dcterms.subjectafrican yam beanen
dcterms.subjectphenotypicen
dcterms.subjectdnaen
dcterms.subjectnigeriaen
dcterms.typeJournal Article

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