The wild species genome ancestry of domestic chickens
Hybridisation and introgression play key roles in the evolutionary history of animal species. They are commonly observed within several orders in wild birds. The domestic chickenGallus gallus domesticusis the most common livestock species. More than 65 billion chickens are raised annually to produce...
| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2020
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/107125 |
| _version_ | 1855532566123118592 |
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| author | Lawal, R.A. Martin, S.H. Vanmechelen, K. Vereijken, A. Silva, P. Al-Atiyat, R.M. Aljumaah, R.S. Mwacharo, Joram M. Dong-Dong Wu Ya-Ping Zhang Hocking, P.M. Smith, J. Wragg, D. Hanotte, Olivier H. |
| author_browse | Al-Atiyat, R.M. Aljumaah, R.S. Dong-Dong Wu Hanotte, Olivier H. Hocking, P.M. Lawal, R.A. Martin, S.H. Mwacharo, Joram M. Silva, P. Smith, J. Vanmechelen, K. Vereijken, A. Wragg, D. Ya-Ping Zhang |
| author_facet | Lawal, R.A. Martin, S.H. Vanmechelen, K. Vereijken, A. Silva, P. Al-Atiyat, R.M. Aljumaah, R.S. Mwacharo, Joram M. Dong-Dong Wu Ya-Ping Zhang Hocking, P.M. Smith, J. Wragg, D. Hanotte, Olivier H. |
| author_sort | Lawal, R.A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Hybridisation and introgression play key roles in the evolutionary history of animal species. They are commonly observed within several orders in wild birds. The domestic chickenGallus gallus domesticusis the most common livestock species. More than 65 billion chickens are raised annually to produce meat and 80 million metric tons of egg for global human consumption by the commercial sector. Unravelling the origin of its genetic diversity has major application for sustainable breeding improvement programmes.In this study, we report genome-wide analyses for signatures of introgression between indigenous domestic village chicken and the four wildGallusspecies. We first assess the genome-wide phylogeny and divergence time across the genusGallus. Genome-wide sequence divergence analysis supports a sister relationship between the Grey junglefowlG. sonneratiiand Ceylon junglefowlG. lafayettii. Both species form a clade that is sister to the Red junglefowlG. gallus, with the Green junglefowlG. variusthe most ancient lineage within the genus. We reveal extensive bidirectional introgression between the Grey junglefowl and the domestic chicken and to a much lesser extent with the Ceylon junglefowl. We identify a single case of Green junglefowl introgression. These introgressed regions include genes with biological functions related to development and immune system.Our study shows that while the Red junglefowl is the main ancestral species, introgressive hybridisation episodes have impacted the genome and contributed to the diversity of the domestic chicken, although likely at different levels across its geographic range. |
| format | Journal Article |
| id | CGSpace107125 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1071252024-05-01T08:18:32Z The wild species genome ancestry of domestic chickens Lawal, R.A. Martin, S.H. Vanmechelen, K. Vereijken, A. Silva, P. Al-Atiyat, R.M. Aljumaah, R.S. Mwacharo, Joram M. Dong-Dong Wu Ya-Ping Zhang Hocking, P.M. Smith, J. Wragg, D. Hanotte, Olivier H. chickens livestock genomes species animal breeding genetic diversity domestication hybridization evolution Hybridisation and introgression play key roles in the evolutionary history of animal species. They are commonly observed within several orders in wild birds. The domestic chickenGallus gallus domesticusis the most common livestock species. More than 65 billion chickens are raised annually to produce meat and 80 million metric tons of egg for global human consumption by the commercial sector. Unravelling the origin of its genetic diversity has major application for sustainable breeding improvement programmes.In this study, we report genome-wide analyses for signatures of introgression between indigenous domestic village chicken and the four wildGallusspecies. We first assess the genome-wide phylogeny and divergence time across the genusGallus. Genome-wide sequence divergence analysis supports a sister relationship between the Grey junglefowlG. sonneratiiand Ceylon junglefowlG. lafayettii. Both species form a clade that is sister to the Red junglefowlG. gallus, with the Green junglefowlG. variusthe most ancient lineage within the genus. We reveal extensive bidirectional introgression between the Grey junglefowl and the domestic chicken and to a much lesser extent with the Ceylon junglefowl. We identify a single case of Green junglefowl introgression. These introgressed regions include genes with biological functions related to development and immune system.Our study shows that while the Red junglefowl is the main ancestral species, introgressive hybridisation episodes have impacted the genome and contributed to the diversity of the domestic chicken, although likely at different levels across its geographic range. 2020-12 2020-02-18T13:02:18Z 2020-02-18T13:02:18Z Journal Article https://hdl.handle.net/10568/107125 en Open Access Springer Lawal, R.A., Martin, S.H., Vanmechelen, K., Vereijken, A., Silva, P., Al-Atiyat, R.M., Aljumaah, R.S., Mwacharo, J.M., Dong-Dong Wu, Ya-Ping Zhang, Hocking, P.M., Smith, J., Wragg, D. and Hanotte, O. 2020. The wild species genome ancestry of domestic chickens. BMC Biology 18:13. |
| spellingShingle | chickens livestock genomes species animal breeding genetic diversity domestication hybridization evolution Lawal, R.A. Martin, S.H. Vanmechelen, K. Vereijken, A. Silva, P. Al-Atiyat, R.M. Aljumaah, R.S. Mwacharo, Joram M. Dong-Dong Wu Ya-Ping Zhang Hocking, P.M. Smith, J. Wragg, D. Hanotte, Olivier H. The wild species genome ancestry of domestic chickens |
| title | The wild species genome ancestry of domestic chickens |
| title_full | The wild species genome ancestry of domestic chickens |
| title_fullStr | The wild species genome ancestry of domestic chickens |
| title_full_unstemmed | The wild species genome ancestry of domestic chickens |
| title_short | The wild species genome ancestry of domestic chickens |
| title_sort | wild species genome ancestry of domestic chickens |
| topic | chickens livestock genomes species animal breeding genetic diversity domestication hybridization evolution |
| url | https://hdl.handle.net/10568/107125 |
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