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  • Morell Miranda, Pedro, et al. (författare)
  • Ancient genomes reveal 7000 years of interconnected Demographic History between Sheep and Humans in Iberia.
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • As the first domestic livestock species, sheep has had a fundamentalrole in human populations since the Neolithic. Theirdemographic history is, however, poorly understood. We successfullysequenced 13 ancient sheep from 2 sites in NorthernIberia to up to 8.74× and 1 modern Corsican mouflon to describethis demographic history at the Western extreme of theMediterranean. Our results support an initial maritime expansioninto Iberia and that European mouflons descended fromferalized Neolithic sheep. We also describe a secondary expansionof Eastern ancestry in sheep at the same time when humanSteppe ancestry arrived to Iberia, and when we expect woollysheep to expand through Europe. Lastly, we found a third expansionin the Mediterranean area during the Roman period,when some historical sources mentioned fine-wool sheep beingtraded. We see evidence that this expansion had a significanteffect in shaping the modern European sheep gene pool leadingto modern breeds like the popular Merino. These resultsillustrate the dynamic history of Iberian sheep populations, andhow human cultural and demographic changes left their footprintsin the sheep gene pool, marking them as a useful proxyfor describing complex human demographic events.
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