But the origin of this domestication remains stubbornly mysterious. “The dogs all form one group, and the wolves all form one group, and there’s no wolf that these dogs are more closely related to of the three that we sampled,” said study researcher John Novembre, a professor of genetics at the University of Chicago. Fossil evidence for domestication dates back as far as 33,000 years, based on the shape of the skull and on ancient DNA analysis. Novembre and his colleagues wanted to refine the understanding of domestication using high-quality, full genomes.
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