The pattern of genetic variability in a core collection of 2,021 cowpea accessions
Cowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting a core subset of the world's largest cowpea collection, held at the Interna...
| Autores principales: | , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/141817 |
| _version_ | 1855521687247781888 |
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| author | Fiscus, C.J. Herniter, I. A. Tchamba, M. Paliwal, R. Muñoz-Amatriaín, M. Roberts, P.A. Abberton, M.T. Alaba, O. Close, T.J. Oyatomi, O. Koenig, D. |
| author_browse | Abberton, M.T. Alaba, O. Close, T.J. Fiscus, C.J. Herniter, I. A. Koenig, D. Muñoz-Amatriaín, M. Oyatomi, O. Paliwal, R. Roberts, P.A. Tchamba, M. |
| author_facet | Fiscus, C.J. Herniter, I. A. Tchamba, M. Paliwal, R. Muñoz-Amatriaín, M. Roberts, P.A. Abberton, M.T. Alaba, O. Close, T.J. Oyatomi, O. Koenig, D. |
| author_sort | Fiscus, C.J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting a core subset of the world's largest cowpea collection, held at the International Institute of Tropical Agriculture (IITA) in Ibadan, Nigeria. We used this dataset to examine genetic variation and population structure in worldwide cowpea. We confirm that the primary pattern of population structure is two geographically defined subpopulations originating in West and East Africa, respectively, and that population structure is associated with shifts in phenotypic distribution. Furthermore, we establish the cowpea core collection as a resource for genome-wide association studies by mapping the genetic basis of several phenotypes, with a focus on seed coat pigmentation patterning and color. We anticipate that the genotyped IITA Cowpea Core Collection will serve as a powerful tool for mapping complex traits, facilitating the acceleration of breeding programs to enhance the resilience of this crop in the face of rapid global climate change. |
| format | Journal Article |
| id | CGSpace141817 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1418172025-12-08T10:06:44Z The pattern of genetic variability in a core collection of 2,021 cowpea accessions Fiscus, C.J. Herniter, I. A. Tchamba, M. Paliwal, R. Muñoz-Amatriaín, M. Roberts, P.A. Abberton, M.T. Alaba, O. Close, T.J. Oyatomi, O. Koenig, D. cowpeas population structure genome-wide association studies seed pigmentation Cowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting a core subset of the world's largest cowpea collection, held at the International Institute of Tropical Agriculture (IITA) in Ibadan, Nigeria. We used this dataset to examine genetic variation and population structure in worldwide cowpea. We confirm that the primary pattern of population structure is two geographically defined subpopulations originating in West and East Africa, respectively, and that population structure is associated with shifts in phenotypic distribution. Furthermore, we establish the cowpea core collection as a resource for genome-wide association studies by mapping the genetic basis of several phenotypes, with a focus on seed coat pigmentation patterning and color. We anticipate that the genotyped IITA Cowpea Core Collection will serve as a powerful tool for mapping complex traits, facilitating the acceleration of breeding programs to enhance the resilience of this crop in the face of rapid global climate change. 2024-06-05 2024-05-13T08:37:55Z 2024-05-13T08:37:55Z Journal Article https://hdl.handle.net/10568/141817 en Open Access application/pdf Oxford University Press Fiscus, C.J., Herniter, I.A., Tchamba, M., Paliwal, R., Muñoz-Amatriaín, M., Roberts, P.A., ... & Koenig, D. (2024). The pattern of genetic variability in a core collection of 2,021 cowpea accessions. G3: Genes, Genomes, Genetics, jkae071, 1-15. |
| spellingShingle | cowpeas population structure genome-wide association studies seed pigmentation Fiscus, C.J. Herniter, I. A. Tchamba, M. Paliwal, R. Muñoz-Amatriaín, M. Roberts, P.A. Abberton, M.T. Alaba, O. Close, T.J. Oyatomi, O. Koenig, D. The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title | The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title_full | The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title_fullStr | The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title_full_unstemmed | The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title_short | The pattern of genetic variability in a core collection of 2,021 cowpea accessions |
| title_sort | pattern of genetic variability in a core collection of 2 021 cowpea accessions |
| topic | cowpeas population structure genome-wide association studies seed pigmentation |
| url | https://hdl.handle.net/10568/141817 |
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