Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection
A 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...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Hindawi Limited
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/132872 |
| _version_ | 1855535805884268544 |
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| author | Adjei, E.A. Esuma, E. Alicai, Titus Bhattacharjee, Ranjana Dramadri, I. Agaba, R. Chamba, E. Odong, Thomas L. |
| author_browse | Adjei, E.A. Agaba, R. Alicai, Titus Bhattacharjee, Ranjana Chamba, E. Dramadri, I. Esuma, E. Odong, Thomas L. |
| author_facet | Adjei, E.A. Esuma, E. Alicai, Titus Bhattacharjee, Ranjana Dramadri, I. Agaba, R. Chamba, E. Odong, Thomas L. |
| author_sort | Adjei, E.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A 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.” |
| format | Journal Article |
| id | CGSpace132872 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Hindawi Limited |
| publisherStr | Hindawi Limited |
| record_format | dspace |
| spelling | CGSpace1328722025-11-11T10:42:10Z Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection Adjei, E.A. Esuma, E. Alicai, Titus Bhattacharjee, Ranjana Dramadri, I. Agaba, R. Chamba, E. Odong, Thomas L. yams phenotypes diversity germplasm genotypes dioscorea A 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.” 2022-12-19 2023-11-09T11:05:20Z 2023-11-09T11:05:20Z Journal Article https://hdl.handle.net/10568/132872 en Open Access application/pdf Hindawi Limited Adjei, E.A., Esuma, E., 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. |
| spellingShingle | yams phenotypes diversity germplasm genotypes dioscorea Adjei, E.A. Esuma, E. Alicai, Titus Bhattacharjee, Ranjana Dramadri, I. Agaba, R. Chamba, E. Odong, Thomas L. Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title | Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title_full | Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title_fullStr | Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title_full_unstemmed | Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title_short | Phenotypic diversity within Ugandan yam (Dioscorea species) germplasm collection |
| title_sort | phenotypic diversity within ugandan yam dioscorea species germplasm collection |
| topic | yams phenotypes diversity germplasm genotypes dioscorea |
| url | https://hdl.handle.net/10568/132872 |
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