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Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection

dc.contributor.authorAdjei, E.A.
dc.contributor.authorEsuma, E.
dc.contributor.authorAlicai, T.
dc.contributor.authorBhattacharjee, R.
dc.contributor.authorDramadri, I.
dc.contributor.authorAgaba, R.
dc.contributor.authorChamba, E.
dc.contributor.authorOdong, T.L.
dc.date.accessioned2024-08-21T14:55:02Z
dc.date.available2024-08-21T14:55:02Z
dc.date.issued2022-12-19
dc.identifier.citationAdjei, E.A., Esuma, W., Alicai, T., Bhattacharjee, R., Dramadri, I., Agaba, R., ... & Odong, T.L. (2022). Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection. International Journal of Agronomy, 2022: 5826012, 1-10.
dc.identifier.issn1687-8159
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8512
dc.description.abstractA proper understanding of the diversity of the available germplasm is an initial step for the genetic improvement of a crop through breeding. However, there is limited information on the diversity of Uganda’s yam germplasm. The study sought to characterize the diversity of yam germplasm utilized for decades in Uganda together with germplasm recently introduced from West Africa using phenotypic traits. A germplasm collection of 291 genotypes was characterized using 28 phenotypic traits. Data were subjected to multivariate analysis using principal component analysis and cluster analysis. The traits assessed were informative and discriminating, with 62% of the total variation explained among the first six principal components. Results showed that the important phenotypic traits contributing to most of the variability among the genotypes were leaves, flowering, and tuber traits. Ugandan genotypes were identified with amorphous tuber shapes compared to West African genotypes. The study has shown that there is ample phenotypic variability within the major yam genotypes in Uganda yam germplasm that can be used for genetic improvement. More in-depth molecular and biochemical studies to further understand the diversity are recommended. The preprint was made available by research square in the following link: “https://www.researchsquare.com/article/rs-1518551/v1.”
dc.description.sponsorshipWorld Bank
dc.description.sponsorshipEuropean Union
dc.format.extent1-10
dc.language.isoen
dc.subjectYams
dc.subjectPhenotypes
dc.subjectDiversity
dc.subjectGermplasm
dc.subjectGenotypes
dc.subjectDioscorea
dc.titlePhenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationMakerere University
cg.contributor.affiliationCouncil for Scientic and Industrial Research - Savanna Agricultural Research Institute
cg.contributor.affiliationNational Crops Resources Research Institute, Uganda
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationNational Agricultural Research Organization, Uganda
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.countryNigeria
cg.coverage.countryUganda
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidADJEI:2022
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectYam
cg.journalInternational Journal of Agronomy
cg.notesOpen Access Journal
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1155/2022/5826012
cg.iitaauthor.identifierRanjana Bhattacharjee: 0000-0002-5184-5930
cg.futureupdate.requiredNo
cg.identifier.issue5826012
cg.identifier.volume2022


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