Ancient DNA shows that dogs probably came from Siberia.
There has been much discussion recently that Siberia may have been the site of dog domestication. In that a research team examining the origins of the domestic dog via the genetic past found that all American dogs carried a genetic signature.
This signature, dubbed A2b, in dogs descended from a canine ancestor that lived in Siberia some 23,000 years ago. An article in the January 2021 issue of Science went on to say:
That ancestral dog probably lived with people who belonged to a genetic grouping known as the ancient north Siberians, the team speculates. The group, which appeared more than 31,000 years ago, lived in a relatively temperate part of northeastern Siberia for thousands of years, and they shared this refuge with the gray wolf, the direct ancestor of today’s dogs.
The assumption being that this group of people brought the dogs with them when, about 15,000 years ago, they splintered into four groups as they spread around North America and Europe.
I wish I could say more but all the texts and pictures that I have come across have all been protected by copywrite.