Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats
Knowledge on how adaptive evolution and human socio‐cultural and economic interests shaped livestock genomes particularly in sub‐Saharan Africa remains limited. Ethiopia is in a geographic region that has been critical in the history of African agriculture with ancient and diverse human ethnicity an...
| Autores principales: | , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2021
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/109412 |
| _version_ | 1855539574810345472 |
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| author | Mekuriaw, Getinet Khayatzadeh, N. Liu, B. Osama, S. Haile, Aynalem Rischkowsky, Barbara A. Zhang, W. Tesfaye, K. Dessie, Tadelle Okeyo Mwai, Ally Djikeng, Appolinaire Mwacharo, Joram M. |
| author_browse | Dessie, Tadelle Djikeng, Appolinaire Haile, Aynalem Khayatzadeh, N. Liu, B. Mekuriaw, Getinet Mwacharo, Joram M. Okeyo Mwai, Ally Osama, S. Rischkowsky, Barbara A. Tesfaye, K. Zhang, W. |
| author_facet | Mekuriaw, Getinet Khayatzadeh, N. Liu, B. Osama, S. Haile, Aynalem Rischkowsky, Barbara A. Zhang, W. Tesfaye, K. Dessie, Tadelle Okeyo Mwai, Ally Djikeng, Appolinaire Mwacharo, Joram M. |
| author_sort | Mekuriaw, Getinet |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Knowledge on how adaptive evolution and human socio‐cultural and economic interests shaped livestock genomes particularly in sub‐Saharan Africa remains limited. Ethiopia is in a geographic region that has been critical in the history of African agriculture with ancient and diverse human ethnicity and bio‐climatic conditions. Using 52K genome‐wide data analysed in 646 individuals from 13 Ethiopian indigenous goat populations, we observed high levels of genetic variation. Although runs of homozygosity (ROH) were ubiquitous genome‐wide, there were clear differences in patterns of ROH length and abundance and in effective population sizes illustrating differences in genome homozygosity, evolutionary history, and management. Phylogenetic analysis incorporating patterns of genetic differentiation and gene flow with ancestry modelling highlighted past and recent intermixing and possible two deep ancient genetic ancestries that could have been brought by humans with the first introduction of goats in Africa. We observed four strong selection signatures that were specific to Arsi‐Bale and Nubian goats. These signatures overlapped genomic regions with genes associated with morphological, adaptation, reproduction and production traits due possibly to selection under environmental constraints and/or human preferences. The regions also overlapped uncharacterized genes, calling for a comprehensive annotation of the goat genome. Our results provide insights into mechanisms leading to genome variation and differentiation in sub‐Saharan Africa indigenous goats. |
| format | Journal Article |
| id | CGSpace109412 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1094122023-12-08T19:25:22Z Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats Mekuriaw, Getinet Khayatzadeh, N. Liu, B. Osama, S. Haile, Aynalem Rischkowsky, Barbara A. Zhang, W. Tesfaye, K. Dessie, Tadelle Okeyo Mwai, Ally Djikeng, Appolinaire Mwacharo, Joram M. indigenous breeds goats small ruminants animal breeding Knowledge on how adaptive evolution and human socio‐cultural and economic interests shaped livestock genomes particularly in sub‐Saharan Africa remains limited. Ethiopia is in a geographic region that has been critical in the history of African agriculture with ancient and diverse human ethnicity and bio‐climatic conditions. Using 52K genome‐wide data analysed in 646 individuals from 13 Ethiopian indigenous goat populations, we observed high levels of genetic variation. Although runs of homozygosity (ROH) were ubiquitous genome‐wide, there were clear differences in patterns of ROH length and abundance and in effective population sizes illustrating differences in genome homozygosity, evolutionary history, and management. Phylogenetic analysis incorporating patterns of genetic differentiation and gene flow with ancestry modelling highlighted past and recent intermixing and possible two deep ancient genetic ancestries that could have been brought by humans with the first introduction of goats in Africa. We observed four strong selection signatures that were specific to Arsi‐Bale and Nubian goats. These signatures overlapped genomic regions with genes associated with morphological, adaptation, reproduction and production traits due possibly to selection under environmental constraints and/or human preferences. The regions also overlapped uncharacterized genes, calling for a comprehensive annotation of the goat genome. Our results provide insights into mechanisms leading to genome variation and differentiation in sub‐Saharan Africa indigenous goats. 2021-07 2020-09-14T08:33:45Z 2020-09-14T08:33:45Z Journal Article https://hdl.handle.net/10568/109412 en Open Access Wiley Mekuriaw, G., Khayatzadeh, N., Liu, B., Osama, S., Haile, A., Rischkowsky, B., Zhang, W., Tesfaye, K., Dessie, T., Okeyo, A.M., Djikeng, A. and Mwacharo, J.M. 2021. Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats. Evolutionary Applications 14(7):1716-1731. |
| spellingShingle | indigenous breeds goats small ruminants animal breeding Mekuriaw, Getinet Khayatzadeh, N. Liu, B. Osama, S. Haile, Aynalem Rischkowsky, Barbara A. Zhang, W. Tesfaye, K. Dessie, Tadelle Okeyo Mwai, Ally Djikeng, Appolinaire Mwacharo, Joram M. Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title | Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title_full | Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title_fullStr | Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title_full_unstemmed | Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title_short | Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats |
| title_sort | ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub saharan african goats |
| topic | indigenous breeds goats small ruminants animal breeding |
| url | https://hdl.handle.net/10568/109412 |
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