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Genetic characterization of cassava (Manihot esculenta Crantz) genotypes using agro-morphological and single nucleotide polymorphism markers

dc.contributor.authorKarim, K.Y.
dc.contributor.authorIfie, B.
dc.contributor.authorDzidzienyo, D.
dc.contributor.authorDanquah, E.Y.
dc.contributor.authorBlay, E.T.
dc.contributor.authorWhyte, J.B.
dc.contributor.authorKulakow, P.
dc.contributor.authorRabbi, I.
dc.contributor.authorParkes, E.
dc.contributor.authorOmoigui, L.
dc.contributor.authorNorman, P.E.
dc.contributor.authorIluebbey, P.
dc.date.accessioned2022-08-09T11:53:40Z
dc.date.available2022-08-09T11:53:40Z
dc.date.issued2019-12-23
dc.identifier.citationKarim, K.Y., Ifie, B., Dzidzienyo, D., Danquah, E.Y., Blay, E.T., Whyte, J.B., ... & Iluebbey, P. (2020). Genetic characterization of cassava (Manihot esculenta Crantz) genotypes using agro-morphological and single nucleotide polymorphism markers. Physiology and Molecular Biology of Plants, 26(2), 317-330.
dc.identifier.issn0971-5894
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7617
dc.description.abstractDearth of information on extent of genetic variability in cassava limits the genetic improvement of cassava genotypes in Sierra Leone. The aim of this study was to assess the genetic diversity and relationships within 102 cassava genotypes using agro-morphological and single nucleotide polymorphism markers. Morphological classification based on qualitative traits categorized the germplasm into five different groups, whereas the quantitative trait set had four groups. The SNP markers classified the germplasm into three main cluster groups. A total of seven principal components (PCs) in the qualitative and four PCs in the quantitative trait sets accounted for 79.03% and 72.30% of the total genetic variation, respectively. Significant and positive correlations were observed between average yield per plant and harvest index (r = 0.76***), number of storage roots per plant and harvest index (r = 0.33*), height at first branching and harvest index (0.26*), number of storage roots per plant and average yield per plant (r = 0.58*), height at first branching and average yield per plant (r = 0.24*), length of leaf lobe and petiole length (r = 0.38*), number of leaf lobe and petiole length (r = 0.31*), width of leaf lobe and length of leaf lobe (r = 0.36*), number of leaf lobe and length of leaf lobe (r = 0.43*), starch content and dry matter content (r = 0.99***), number of leaf lobe and root dry matter (r = 0.30*), number of leaf lobe and starch content (r = 0.28*), and height at first branching and plant height (r = 0.45**). Findings are useful for conservation, management, short term recommendation for release and genetic improvement of the crop.
dc.description.sponsorshipInternational Development Research Centre
dc.format.extent317-330
dc.language.isoen
dc.subjectCassava
dc.subjectManihot Esculenta
dc.subjectGenetics
dc.subjectMorphology
dc.subjectGenetic Markers
dc.subjectGenetic Diversity
dc.titleGenetic characterization of cassava (Manihot esculenta Crantz) genotypes using agro-morphological and single nucleotide polymorphism markers
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationSierra Leone Agricultural Research Institute
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ghana
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countrySierra Leone
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidKARIM:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.journalPhysiology and Molecular Biology of Plants
cg.notesPublished online: 23 Dec 2019
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1007/s12298-019-00740-x
cg.iitaauthor.identifierPeter Kulakow: 0000-0002-7574-2645
cg.iitaauthor.identifierIsmail Rabbi: 0000-0001-9966-2941
cg.iitaauthor.identifierE J Parkes: 0000-0003-4063-1483
cg.iitaauthor.identifierLucky Omoigui: 0000-0001-8473-2775
cg.futureupdate.requiredNo
cg.identifier.issue2
cg.identifier.volume26


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