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| Pàgina inicial > Articles > Articles publicats > Investigating the footprint of post-domestication dispersal on the diversity of modern European, African and Asian goats |
(Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) (Università di Sassari) (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) (Centre de Recerca en Agrigenòmica) (Università di Sassari) (Università di Sassari) (Universidad de Córdoba) (Universidad de Córdoba) (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
| Data: | 2024 |
| Resum: | Goats were domesticated in the Fertile Crescent about 10,000 years before present (YBP) and subsequently spread across Eurasia and Africa. This dispersal is expected to generate a gradient of declining genetic diversity with increasing distance from the areas of early livestock management. Previous studies have reported the existence of such genetic cline in European goat populations, but they were based on a limited number of microsatellite markers. Here, we have analyzed data generated by the AdaptMap project and other studies. More specifically, we have used the geographic coordinates and estimates of the observed (H) and expected (H) heterozygosities of 1077 European, 1187 African and 617 Asian goats belonging to 38, 43 and 22 different breeds, respectively, to find out whether genetic diversity and distance to Ganj Dareh, a Neolithic settlement in western Iran for which evidence of an early management of domestic goats has been obtained, are significantly correlated. Principal component and ADMIXTURE analyses revealed an incomplete regional differentiation of European breeds, but two genetic clusters representing Northern Europe and the British-Irish Isles were remarkably differentiated from the remaining European populations. In African breeds, we observed five main clusters: (1) North Africa, (2) West Africa, (3) East Africa, (4) South Africa, and (5) Madagascar. Regarding Asian breeds, three well differentiated West Asian, South Asian and East Asian groups were observed. For European and Asian goats, no strong evidence of significant correlations between H and H and distance to Ganj Dareh was found. In contrast, in African breeds we detected a significant gradient of diversity, which decreased with distance to Ganj Dareh. The detection of a genetic cline associated with distance to the Ganj Dareh in African but not in European or Asian goat breeds might reflect differences in the post-domestication dispersal process and subsequent migratory movements associated with the management of caprine populations from these three continents. The online version contains supplementary material available at 10. 1186/s12711-024-00923-5. |
| Ajuts: | Agencia Estatal de Investigación PID2019-105805RB-I00 Agencia Estatal de Investigación PID2022-136834OB-I00 Agencia Estatal de Investigación CEX2019-000902-S Ministerio de Economía, Industria y Competitividad BES-C-2017-079709 European Commission 945043 Generalitat de Catalunya 2020/BP-00101 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Publicat a: | Genetics, selection, evolution, Vol. 56 (July 2024) , art. 55, ISSN 1297-9686 |
