Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle
Mitochondrial function relies on the coordinated interactions between genes in the mitochondrial (mtDNA) and nuclear genomes. Imperfect interactions following mitonuclear incompatibility may lead to reduced fitness. MtDNA introgressions across species and populations are common and well documented....
| Autores principales: | , , , , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2025
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/173323 |
| _version_ | 1855523919035891712 |
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| author | Shi, X. Ma, C. Chen, N. Xu, M.-M. Kambal, S. Cai, Z.-F. Yang, Q. Adeola, A.C. Liu, L.-S. Wang, J. Lu, W.-F. Li, Y. Msalya, G.M. Lei, C. Mwacharo, J.M. Han Jianlin Hanotte, Olivier H. Zhang, Y.-P. Peng, M.-S. |
| author_browse | Adeola, A.C. Cai, Z.-F. Chen, N. Han Jianlin Hanotte, Olivier H. Kambal, S. Lei, C. Li, Y. Liu, L.-S. Lu, W.-F. Ma, C. Msalya, G.M. Mwacharo, J.M. Peng, M.-S. Shi, X. Wang, J. Xu, M.-M. Yang, Q. Zhang, Y.-P. |
| author_facet | Shi, X. Ma, C. Chen, N. Xu, M.-M. Kambal, S. Cai, Z.-F. Yang, Q. Adeola, A.C. Liu, L.-S. Wang, J. Lu, W.-F. Li, Y. Msalya, G.M. Lei, C. Mwacharo, J.M. Han Jianlin Hanotte, Olivier H. Zhang, Y.-P. Peng, M.-S. |
| author_sort | Shi, X. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Mitochondrial function relies on the coordinated interactions between genes in the mitochondrial (mtDNA) and nuclear genomes. Imperfect interactions following mitonuclear incompatibility may lead to reduced fitness. MtDNA introgressions across species and populations are common and well documented. Various strategies may be expected to reconcile mitonuclear incompatibility in hybrids or admixed individuals. African admixed cattle (<i>Bos taurus</i> × <i>B. indicus</i>) show sex-biased admixture, with taurine (<i>B. taurus</i>) mtDNA and a nuclear genome predominantly of humped zebu (<i>B. indicus</i>). Here, we leveraged local ancestry inference approaches to identify the ancestry and distribution patterns of nuclear functional genes associated with the mitochondrial oxidative phosphorylation process in the genomes of African admixed cattle. We show that most of the nuclear genes involved in mitonuclear interactions are under selection and of humped zebu ancestry. Variation in mtDNA copy number (mtDNA-CN) may have contributed to the recovery of optimal mitochondrial function following admixture with the regulation of gene expression, alleviating or nullifying mitochondrial dysfunction. Interestingly, some nuclear mitochondrial genes with enrichment in taurine ancestry may have originated from ancient African aurochs (<i>B. primigenius africanus</i>) introgression. They may have contributed to the local adaptation of African cattle to pathogen burdens. Our study provides further support and new evidence showing that the successful settlement of cattle across the continent was a complex mechanism involving adaptive introgression, mtDNA-CN variation, regulation of gene expression, and selection of ancestral mitochondria-related genes. |
| format | Journal Article |
| id | CGSpace173323 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1733232025-10-26T12:51:56Z Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle Shi, X. Ma, C. Chen, N. Xu, M.-M. Kambal, S. Cai, Z.-F. Yang, Q. Adeola, A.C. Liu, L.-S. Wang, J. Lu, W.-F. Li, Y. Msalya, G.M. Lei, C. Mwacharo, J.M. Han Jianlin Hanotte, Olivier H. Zhang, Y.-P. Peng, M.-S. cattle genetics genomes pathogens Mitochondrial function relies on the coordinated interactions between genes in the mitochondrial (mtDNA) and nuclear genomes. Imperfect interactions following mitonuclear incompatibility may lead to reduced fitness. MtDNA introgressions across species and populations are common and well documented. Various strategies may be expected to reconcile mitonuclear incompatibility in hybrids or admixed individuals. African admixed cattle (<i>Bos taurus</i> × <i>B. indicus</i>) show sex-biased admixture, with taurine (<i>B. taurus</i>) mtDNA and a nuclear genome predominantly of humped zebu (<i>B. indicus</i>). Here, we leveraged local ancestry inference approaches to identify the ancestry and distribution patterns of nuclear functional genes associated with the mitochondrial oxidative phosphorylation process in the genomes of African admixed cattle. We show that most of the nuclear genes involved in mitonuclear interactions are under selection and of humped zebu ancestry. Variation in mtDNA copy number (mtDNA-CN) may have contributed to the recovery of optimal mitochondrial function following admixture with the regulation of gene expression, alleviating or nullifying mitochondrial dysfunction. Interestingly, some nuclear mitochondrial genes with enrichment in taurine ancestry may have originated from ancient African aurochs (<i>B. primigenius africanus</i>) introgression. They may have contributed to the local adaptation of African cattle to pathogen burdens. Our study provides further support and new evidence showing that the successful settlement of cattle across the continent was a complex mechanism involving adaptive introgression, mtDNA-CN variation, regulation of gene expression, and selection of ancestral mitochondria-related genes. 2025-02-03 2025-02-21T06:59:14Z 2025-02-21T06:59:14Z Journal Article https://hdl.handle.net/10568/173323 en Open Access Oxford University Press Shi, X., Ma, C., Chen, N., Xu, M.-M., Kambal, S., Cai, Z.-F., Yang, Q., Adeola, A.C., Liu, L.-S., Wang, J., Lu, W.-F., Li, Y., Msalya, G.M., Lei, C., Mwacharo, J.M., Han, J.-L., Hanotte, O., Zhang, Y.-P. and Peng, M.-S. 2025. Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle. Molecular Biology and Evolution 42(2): msaf039. |
| spellingShingle | cattle genetics genomes pathogens Shi, X. Ma, C. Chen, N. Xu, M.-M. Kambal, S. Cai, Z.-F. Yang, Q. Adeola, A.C. Liu, L.-S. Wang, J. Lu, W.-F. Li, Y. Msalya, G.M. Lei, C. Mwacharo, J.M. Han Jianlin Hanotte, Olivier H. Zhang, Y.-P. Peng, M.-S. Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title | Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title_full | Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title_fullStr | Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title_full_unstemmed | Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title_short | Selection increases mitonuclear DNA discordance but reconciles incompatibility in African cattle |
| title_sort | selection increases mitonuclear dna discordance but reconciles incompatibility in african cattle |
| topic | cattle genetics genomes pathogens |
| url | https://hdl.handle.net/10568/173323 |
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