Supplementary material from "Specialized sledge dogs accompanied Inuit dispersal across the North American Arctic"
Posted on 2019-11-15 - 13:17
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 Paleo-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 Paleo-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 Paleo-Inuit dogs, and most likely aided the Inuit expansion across the North American Arctic beginning around 1000 BP.
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Ameen, Carly; Feuerborn, Tatiana R.; Brown, Sarah K.; Linderholm, Anna; Hulme-Beaman, Ardern; Lebrasseur, Ophélie; et al. (2019). Supplementary material from "Specialized sledge dogs accompanied Inuit dispersal across the North American Arctic". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.4740998.v1
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AUTHORS (59)
CA
Carly Ameen
TF
Tatiana R. Feuerborn
SB
Sarah K. Brown
AL
Anna Linderholm
AH
Ardern Hulme-Beaman
OL
Ophélie Lebrasseur
MS
Mikkel-Holger S. Sinding
ZL
Zachary T. Lounsberry
AL
Audrey T. Lin
MA
Martin Appelt
LB
Lutz Bachmann
MB
Matthew Betts
KB
Kate Britton
JD
John Darwent
RD
Rune Dietz
MF
Merete Fredholm
Sg
Shyam gopalakrishnan
OG
Olga I. Goriunova
BG
Bjarne Grønnow
JH
James Haile