The evolutionary history of dogs in the Americas

Dogs were present in the Americas before the arrival of European colonists, but the origin and fate of these precontact dogs are largely unknown. We sequenced 71 mitochondrial and 7 nuclear genomes from ancient North American and Siberian dogs from time frames spanning ~9000 years. Our analysis indi...

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Published in:Science (American Association for the Advancement of Science) Vol. 361; no. 6397; p. 81
Main Authors: Ní Leathlobhair, Máire, Perri, Angela R, Irving-Pease, Evan K, Witt, Kelsey E, Linderholm, Anna, Haile, James, Lebrasseur, Ophelie, Ameen, Carly, Blick, Jeffrey, Boyko, Adam R, Brace, Selina, Cortes, Yahaira Nunes, Crockford, Susan J, Devault, Alison, Dimopoulos, Evangelos A, Eldridge, Morley, Enk, Jacob, Gopalakrishnan, Shyam, Gori, Kevin, Grimes, Vaughan, Guiry, Eric, Hansen, Anders J, Hulme-Beaman, Ardern, Johnson, John, Kitchen, Andrew, Kasparov, Aleksei K, Kwon, Young-Mi, Nikolskiy, Pavel A, Lope, Carlos Peraza, Manin, Aurélie, Martin, Terrance, Meyer, Michael, Myers, Kelsey Noack, Omura, Mark, Rouillard, Jean-Marie, Pavlova, Elena Y, Sciulli, Paul, Sinding, Mikkel-Holger S, Strakova, Andrea, Ivanova, Varvara V, Widga, Christopher, Willerslev, Eske, Pitulko, Vladimir V, Barnes, Ian, Gilbert, M Thomas P, Dobney, Keith M, Malhi, Ripan S, Murchison, Elizabeth P, Larson, Greger, Frantz, Laurent A F
Format: Journal Article
Language:English
Published: United States 06.07.2018
Subjects:
Americas
Animals
Biological Evolution
Cell Nucleus - genetics
Dog Diseases - genetics
Dog Diseases - transmission
Dogs - classification
Dogs - genetics
Domestication
Genome, Mitochondrial
Human Migration
Humans
Neoplasms - veterinary
Phylogeny
Sexually Transmitted Diseases - transmission
Sexually Transmitted Diseases - veterinary
Siberia
Wolves - classification
Wolves - genetics
ISSN:1095-9203, 1095-9203
Online Access:Get more information
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Summary:Dogs were present in the Americas before the arrival of European colonists, but the origin and fate of these precontact dogs are largely unknown. We sequenced 71 mitochondrial and 7 nuclear genomes from ancient North American and Siberian dogs from time frames spanning ~9000 years. Our analysis indicates that American dogs were not derived from North American wolves. Instead, American dogs form a monophyletic lineage that likely originated in Siberia and dispersed into the Americas alongside people. After the arrival of Europeans, native American dogs almost completely disappeared, leaving a minimal genetic legacy in modern dog populations. The closest detectable extant lineage to precontact American dogs is the canine transmissible venereal tumor, a contagious cancer clone derived from an individual dog that lived up to 8000 years ago.
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ISSN:1095-9203
1095-9203
DOI:10.1126/science.aao4776