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Diversity of water yam (Dioscorea alata L.) accessions from Cote d'Ivoire based on SNP markers and agronomic traits

dc.contributor.authorBakayoko, L.
dc.contributor.authorPokou, D.N.
dc.contributor.authorKouassi, A.B.
dc.contributor.authorAgre, A.P.
dc.contributor.authorKouakou, A.M.
dc.contributor.authorDibi, K.E.B.
dc.contributor.authorNzue, B.
dc.contributor.authorMondo, J.
dc.contributor.authorAdebola, P.O.
dc.contributor.authorAkintayo, O.T.
dc.contributor.authorAsfaw, A.
dc.contributor.authorN'guetta, A.S.
dc.date.accessioned2022-01-25T10:37:40Z
dc.date.available2022-01-25T10:37:40Z
dc.date.issued2021
dc.identifier.citationBakayoko, L., Pokou, D.N., Kouassi, A.B., Agre, A.P., Kouakou, A.M., Dibi, K.E.B., ... & N'guetta, A.S. (2021). Diversity of water yam (Dioscorea alata L.) accessions from Côte d’Ivoire based on SNP markers and agronomic traits. Plants, 10(12): 2562, 1-18.
dc.identifier.issn2223-7747
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7319
dc.description.abstractDioscorea alata (L.), also referred to as water, winged, or greater yam, is one of the most economically important staple food crops in tropical and subtropical areas. In Côte d’Ivoire, it represents, along with other yam species, the largest food crop and significantly contributes to food security. However, studies focusing on better understanding the structure and extent of genetic diversity among D. alata accessions, using molecular and phenotypic traits, are limited. This study was, therefore, conducted to assess the pattern of genetic variability in a set of 188 D. alata accessions from the National Agronomic Research Centre (CNRA) genebank using 11,722 SNP markers (generated by the Diversity Arrays Technology) and nine agronomic traits. Phylogenetic analyses using hierarchical clustering, admixture, kinship, and Discriminant analysis of principal component (DAPC) all assigned the accessions into four main clusters. Genetic diversity assessment using molecular-based SNP markers showed a high proportion of polymorphic SNPs (87.81%). The analysis of molecular variance (AMOVA) showed low molecular variability within genetic groups. In addition, the agronomic traits evaluated for two years in field conditions showed a high heritability and high variability among D. alata accessions. This study provides insights into the genetic diversity among accessions in the CNRA genebank and opens an avenue for sustainable resource management and the identification of promising parental clones for water yam breeding programs in Côte d’Ivoire.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-18
dc.language.isoen
dc.subjectDioscorea Alata
dc.subjectGenetic Diversity
dc.subjectMolecular Markers
dc.subjectPopulation Structure
dc.subjectAgronomic Trait
dc.subjectYams
dc.titleDiversity of water yam (Dioscorea alata L.) accessions from Cote d'Ivoire based on SNP markers and agronomic traits
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversité Félix Houphouët Boigny
cg.contributor.affiliationCentre National de Recherche Agronomique, Côte d’Ivoire
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversité Evangélique en Afrique, Democratic Republic of Congo
cg.contributor.affiliationUniversité de Lomé
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryCote d’Ivoire (Ivory Coast)
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidBABAYOKO:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectYam
cg.journalPlants
cg.notesOpen Access Journal; Published online: 24 Nov 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3390/plants10122562
cg.iitaauthor.identifierPaterne AGRE: 0000-0003-1231-2530
cg.iitaauthor.identifierPatrick Adebola: 0000-0002-5155-6194
cg.iitaauthor.identifierAsrat Asfaw: 0000-0002-4859-0631
cg.futureupdate.requiredNo
cg.identifier.issue12: 2562
cg.identifier.volume10


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