(06-11-2012, 02:21 PM)Ram Wrote: If the domesticated dogs were originated in Asia, when and how did they spread to the rest of the world?
I don't mind to hear some more details.
Quote:A 2002 study by Peter Savolainen et al. identified mitochondrial DNA evidence suggesting a common origin from a single East Asian gene pool for all dog populations. In 2010, a study by Bridgett vonHoldt et al., using a larger data set of nuclear markers, pointed to the Middle East as the source of most of the genetic diversity in the domestic dog and a more likely origin of domestication events. Z-L Ding et al. (2011) presented new Y-chromosome data from 151 dogs sampled worldwide, again pointing to a single domestication region south of the Yangtze river. Source
Unfortunately even with the multiple studies of the origins of the dog, no one can definitely say where. They all rely on archaeological findings and genetics.
Two studies have already mentioned that the domestication started near the Yangtze River. One of which was the 2009 study by the Kunming Institute stating that dogs were domesticated from wolves tamed less than 16,300 years ago and the other is mentioned above.