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Specialized sledge dogs accompanied Inuit dispersal across the North American Arctic
Swedish Museum of Natural History, Department of Bioinformatics and Genetics.
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2019 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 286, no 1916, article id 20191929Article in journal (Refereed) Published
Abstract [en]

Domestic dogs have been central to life in the North American Arctic for millennia. The ancestors of the Inuit were the first to introduce the widespread usage of dog sledge transportation technology to the Americas, but whether the Inuit adopted local Palaeo-Inuit dogs or introduced a new dog population to the region remains unknown. To test these hypotheses, we generated mitochondrial DNA and geometric morphometric data of skull and dental elements from a total of 922 North American Arctic dogs and wolves spanning over 4500 years. Our analyses revealed that dogs from Inuit sites dating from 2000 BP possess morphological and genetic signatures that distinguish them from earlier Palaeo-Inuit dogs, and identified a novel mitochondrial clade in eastern Siberia and Alaska. The genetic legacy of these Inuit dogs survives today in modern Arctic sledge dogs despite phenotypic differences between archaeological and modern Arctic dogs. Together, our data reveal that Inuit dogs derive from a secondary pre-contact migration of dogs distinct from Palaeo-Inuit dogs, and probably aided the Inuit expansion across the North American Arctic beginning around 1000 BP.

Place, publisher, year, edition, pages
2019. Vol. 286, no 1916, article id 20191929
National Category
Natural Sciences Humanities and the Arts
Research subject
Diversity of life
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URN: urn:nbn:se:nrm:diva-3674DOI: 10.1098/rspb.2019.1929ISI: 000499474600006PubMedID: 31771471OAI: oai:DiVA.org:nrm-3674DiVA, id: diva2:1381547
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EU, Horizon 2020, 676154Available from: 2019-12-22 Created: 2019-12-22 Last updated: 2019-12-22

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Feuerborn, Tatiana R.Lin, Audrey T.Sonne, ChristianDalen, LoveEvin, Allowen
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