Origins of domestic dog in Southern East Asia is supported by analysis of Y-chromosome DNA

摘要: Global mitochondrial DNA (mtDNA) data indicates that the dog originates from domestication of wolf in Asia South Yangtze River (ASY), with minor genetic contributions dog–wolf hybridisation elsewhere. Archaeological and autosomal single nucleotide polymorphism have instead suggested dogs originate Europe and/or West but, because these datasets lack ASY, evidence pointing to ASY may been overlooked. Analyses additional markers for global datasets, including are therefore necessary test if mtDNA phylogeography reflects actual history not merely stochastic events or selection. Here, we analyse 14 437 bp Y-chromosome sequence 151 sampled worldwide. We found 28 haplotypes distributed five haplogroups. Two haplogroups were universally shared included three carried by 46% all dogs, but two other primarily restricted East Asia. Highest diversity virtually complete phylogenetic coverage was within ASY. The estimated 13–24 founders, there no indication post-domestication hybridisations. Thus, give strikingly similar pictures phylogeography, most importantly roughly 50% gene pools only has nearly full range diversity, such regions derive This corroborates principal, possibly sole region domestication, a large number wolves domesticated, subsequent contributed modestly pool.