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Article Dans Une Revue Proceedings of the National Academy of Sciences of the United States of America Année : 2006

Divergent mtDNA lineages of goats in an Early Neolithic site, far from the initial domestication areas

Résumé

Goats were among the first farm animals domesticated, approximate to 10,500 years ago, contributing to the rise of the "Neolithic revolution." Previous genetic studies have revealed that contemporary domestic goats (Capra hircus) show far weaker intercontinental population structuring than other livestock species, suggesting that goats have been transported more extensively. However, the timing of these extensive movements in goats remains unknown. To address this question, we analyzed mtDNA sequences from 19 ancient goat bones (7,300-6,900 years old) from one of the earliest Neolithic sites in southwestern Europe. Phylogenetic analysis revealed that two highly divergent goat lineages coexisted in each of the two Early Neolithic layers of this site. This finding indicates that high mtDNA diversity was already present > 7,000 years ago in European goats, far from their areas of initial domestication in the Near East. These results argue for substantial gene flow among goat populations dating back to the early neolithisation of Europe and for a dual domestication scenario in the Near East, with two independent but essentially contemporary origins (of both A and C domestic lineages) and several more remote and/or later origins.

Dates et versions

halsde-00276516 , version 1 (30-04-2008)

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Citer

H. Fernandez, Sandrine Hughes, J. D. Vigne, Daniel Helmer, G. Hodgins, et al.. Divergent mtDNA lineages of goats in an Early Neolithic site, far from the initial domestication areas. Proceedings of the National Academy of Sciences of the United States of America, 2006, 103 (42), pp.15375-15379. ⟨10.1073/pnas.0602753103⟩. ⟨halsde-00276516⟩
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