High-density DArTSeq SNP markers revealed wide genetic diversity and structured population in common bean (Phaseolus vulgaris L.) germplasm in Ethiopia

Vista sencilla de ítem
dc.creatorGelaw, Yonas Moges
dc.creatorEleblu, John S. Y.
dc.creatorOfori, Kwadwo
dc.creatorFenta, Berhanu Amsalu
dc.creatorMukankusi, Clare
dc.creatorEmam, Ermias Assefa
dc.creatorOffei, Samuel Kwame
dc.date2023-08
dc.date2023-10-06T11:18:45Z
dc.date2023-10-06T11:18:45Z
dc.date.accessioned2026-06-27T13:32:05Z
dc.descriptionAbstract Introduction Common bean is one of the widely consumed food security crop in Africa, Asia, and South America. Understanding genetic diversity and population structure is crucial for designing breeding strategies. Materials Two hundred and eighty-nine germplasm were recently collected from different regions of Ethiopia and introduced from CIAT to estimate genetic diversity and population structure using 11,480 DArTSeq SNP markers. Results The overall mean genetic diversity and polymorphic information content (PIC) were 0.38 and 0.30, respectively, suggested the presence of adequate genetic diversity among the genotypes. Among the geographical regions, landraces collected from Oromia showed the highest diversity (0.39) and PIC (0.30). The highest genetic distance was observed between genotypes collected from SNNPR and CIAT (0.49). In addition, genotypes from CIAT were genetically more related to improved varieties than the landraces which could be due to sharing of parents in the improvement process. The analysis of molecular variance revealed that the largest proportion of variation was due to within the population both in geographical region (63.67%) and breeding status (61.3%) based classification. Model-based structure analysis delineated the 289 common bean genotypes into six hypothetical ancestoral populations. Conclusions The genotypes were not clustered based on geographical regions and they were not the main drivers for the differentiation. This indicated that selection of the parental lines should be based on systematic assessment of the diversity rather than geographical distance. This article provides new insights into the genetic diversity and population structure of common bean for association studies, designing effective collection and conservation for efficient utilization for the improvement of the crop.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/132159
dc.identifier.urihttp://hdl.handle.net/123456789/62413
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceGelaw, Y.M.; Eleblu, J.S.Y.; Ofori, K.; Fenta, B.A.; Mukankusi, C.; Emam, E.A.; Offei, S. (2023) High-density DArTSeq SNP markers revealed wide genetic diversity and structured population in common bean (Phaseolus vulgaris L.) germplasm in Ethiopia. Molecular Biology Reports 50(8): p. 6739-6751. ISSN: 0301-4851
dc.subjectgenetic diversity (as resource)
dc.subjectheterozygotes
dc.subjectmarker-assisted selection-marker assisted selection
dc.subjectpopulation structure
dc.subjectresource conservation-conservation
dc.subjectuses
dc.subjectgenotypes
dc.titleHigh-density DArTSeq SNP markers revealed wide genetic diversity and structured population in common bean (Phaseolus vulgaris L.) germplasm in Ethiopia
dc.typeJournal Article

Archivos

Colecciones

Alianza Bioversity International y CIAT