An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas
The oldest confirmed remains of domestic dogs in North America are from mid-continent archeological sites dated ~9,900 calibrated years before present (cal BP). Although this date suggests that dogs may not have arrived alongside the first Native Americans, the timing and routes for the entrance of...
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ftzenodo:oai:zenodo.org:4480442 2024-09-15T18:01:25+00:00 An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas da Silva Coelho, Flavio Augusto Gill, Stephanie Tomlin, Crystal Heaton, Timothy Lindqvist, Charlotte 2021-01-29 https://doi.org/10.5061/dryad.tb2rbp000 unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.tb2rbp000 oai:zenodo.org:4480442 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Canis lupus familiaris North Pacific Coast paleodiet Paleogenetics precontact dogs Southeast Alaska info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.5061/dryad.tb2rbp000 2024-07-26T11:05:33Z The oldest confirmed remains of domestic dogs in North America are from mid-continent archeological sites dated ~9,900 calibrated years before present (cal BP). Although this date suggests that dogs may not have arrived alongside the first Native Americans, the timing and routes for the entrance of New World dogs are unclear. Here, we present a complete mitochondrial genome of a dog from Southeast Alaska, dated to 10,150 ± 260 cal BP. We compared this high-coverage genome with data from modern dog breeds, historical Arctic dogs, and American precontact dogs (PCDs) from before European arrival. Our analyses demonstrate that the ancient dog shared a common ancestor with PCDs that lived ~14,500 years ago and diverged from Siberian dogs around 16,000 years ago, coinciding with the minimum suggested date for the opening of the North Pacific coastal (NPC) route along the Cordilleran Ice Sheet and genetic evidence for the initial peopling of the Americas. This ancient Southeast Alaskan dog occupies an early branching position within the PCD clade, indicating it represents a close relative of the earliest PCDs that were brought alongside people migrating from eastern Beringia southward along the NPC to the rest of the Americas. The stable isotope δ13C value of this early dog indicates a marine diet, different from the younger mid-continent PCDs' terrestrial diet. Although PCDs were largely replaced by modern European dog breeds, our results indicate that their population decline started ~2,000 years BP, coinciding with the expansion of Inuit peoples, who are associated with traditional sled-dog culture. Our findings suggest that dogs formed part of the initial human habitation of the New World, and provide insights into their replacement by both Arctic and European lineages. Other/Unknown Material Canis lupus Ice Sheet inuit Alaska Beringia Zenodo |
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Canis lupus familiaris North Pacific Coast paleodiet Paleogenetics precontact dogs Southeast Alaska |
spellingShingle |
Canis lupus familiaris North Pacific Coast paleodiet Paleogenetics precontact dogs Southeast Alaska da Silva Coelho, Flavio Augusto Gill, Stephanie Tomlin, Crystal Heaton, Timothy Lindqvist, Charlotte An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
topic_facet |
Canis lupus familiaris North Pacific Coast paleodiet Paleogenetics precontact dogs Southeast Alaska |
description |
The oldest confirmed remains of domestic dogs in North America are from mid-continent archeological sites dated ~9,900 calibrated years before present (cal BP). Although this date suggests that dogs may not have arrived alongside the first Native Americans, the timing and routes for the entrance of New World dogs are unclear. Here, we present a complete mitochondrial genome of a dog from Southeast Alaska, dated to 10,150 ± 260 cal BP. We compared this high-coverage genome with data from modern dog breeds, historical Arctic dogs, and American precontact dogs (PCDs) from before European arrival. Our analyses demonstrate that the ancient dog shared a common ancestor with PCDs that lived ~14,500 years ago and diverged from Siberian dogs around 16,000 years ago, coinciding with the minimum suggested date for the opening of the North Pacific coastal (NPC) route along the Cordilleran Ice Sheet and genetic evidence for the initial peopling of the Americas. This ancient Southeast Alaskan dog occupies an early branching position within the PCD clade, indicating it represents a close relative of the earliest PCDs that were brought alongside people migrating from eastern Beringia southward along the NPC to the rest of the Americas. The stable isotope δ13C value of this early dog indicates a marine diet, different from the younger mid-continent PCDs' terrestrial diet. Although PCDs were largely replaced by modern European dog breeds, our results indicate that their population decline started ~2,000 years BP, coinciding with the expansion of Inuit peoples, who are associated with traditional sled-dog culture. Our findings suggest that dogs formed part of the initial human habitation of the New World, and provide insights into their replacement by both Arctic and European lineages. |
format |
Other/Unknown Material |
author |
da Silva Coelho, Flavio Augusto Gill, Stephanie Tomlin, Crystal Heaton, Timothy Lindqvist, Charlotte |
author_facet |
da Silva Coelho, Flavio Augusto Gill, Stephanie Tomlin, Crystal Heaton, Timothy Lindqvist, Charlotte |
author_sort |
da Silva Coelho, Flavio Augusto |
title |
An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
title_short |
An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
title_full |
An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
title_fullStr |
An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
title_full_unstemmed |
An early dog from Southeast Alaska supports a coastal route for the first dog migration into the Americas |
title_sort |
early dog from southeast alaska supports a coastal route for the first dog migration into the americas |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.tb2rbp000 |
genre |
Canis lupus Ice Sheet inuit Alaska Beringia |
genre_facet |
Canis lupus Ice Sheet inuit Alaska Beringia |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.tb2rbp000 oai:zenodo.org:4480442 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.tb2rbp000 |
_version_ |
1810438572613828608 |