Angela R. Perri

TL;DR: The results demonstrate that the unifying characteristic among all genetically distinct so-called ancient breeds is a lack of recent admixture with other breeds likely facilitated by geographic and cultural isolation, suggesting that studies of modern breeds have yet to shed light on dog origins.

TL;DR: Results suggest that dogs may have been domesticated independently in Eastern and Western Eurasia from distinct wolf populations, and East Eurasian dogs were then possibly transported to Europe with people, where they partially replaced European Paleolithic dogs.

TL;DR: The analysis indicates that American dogs were not derived from North American wolves but likely originated from a Siberian ancestor, and form a monophyletic lineage that likely originated in Siberia and dispersed into the Americas alongside people.

TL;DR: In this paper, the authors draw attention to the most significant shortcoming in claims of early domesticated dogs and show that without comprehensive data on the range of variation within Pleistocene wolf populations, the identification of domestic dogs from prior to the Late Upper Paleolithic cannot be conclusively accepted or rejected.

TL;DR: Comparing population genetic results of humans and dogs from Siberia, Beringia, and North America shows that there is a close correlation in the movement and divergences of their respective lineages, and suggests that dogs were domesticated in Siberia by ∼23,000 y ago, possibly while both people and wolves were isolated during the harsh climate of the Last Glacial Maximum.