5 avril 2018
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info:eu-repo/semantics/altIdentifier/doi/10.1126/science.aao3297
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/pmid/29472442
info:eu-repo/semantics/OpenAccess
Charleen Gaunitz et al., « Ancient genomes revisit the ancestry of domestic and Przewalski’s horses », HALSHS : archive ouverte en Sciences de l’Homme et de la Société, ID : 10.1126/science.aao3297
The Eneolithic Botai culture of the Central Asian steppes provides the earliest archaeological evidence for horse husbandry, ~5500 years ago, but the exact nature of early horse domestication remains controversial. We generated 42 ancient-horse genomes, including 20 from Botai. Compared to 46 published ancient- and modern-horse genomes, our data indicate that Przewalski's horses are the feral descendants of horses herded at Botai and not truly wild horses. All domestic horses dated from ~4000 years ago to present only show ~2.7% of Botai-related ancestry. This indicates that a massive genomic turnover underpins the expansion of the horse stock that gave rise to modern domesticates, which coincides with large-scale human population expansions during the Early Bronze Age.