Domestic dogs are good friends of human beings. Although they are very different, they have a common ancestor -- the gray Wolf. Gray wolves are widely distributed around the globe, but local domestic dogs did not evolve from local wolves. Comparing the genetic diversity of domestic dog populations from different regions based on the genome D.NA., the researchers found that the highest diversity was found in domestic dog populations from southern East Asia. At the same time, the structure of the phylogenetic tree also supports the common origin of the domestic dog. In phylogenetic trees, the end of each branch represents a population, and closely related populations tend to be closer together on the tree. Domestic dogs from southern East Asia were located at the base of the phylogenetic tree.
Dogs with different temperaments and shapes have a common origin is described in words.