![]() These estimations based on genomic data indicate Han Chinese, Japanese and Korean people are genetically closely-related and derived their ancestry from a common gene pool. On the other hand genome-wide variation data can largely distinguish Han Chinese, Japanese and Korean individuals without much ambiguity (see the image below). Since the population diverged, the present-day Han Chinese, Japanese and Korean populations have built their own gene pools and formed distinct genetic makeups. ![]() This means that individual ethnicity of the three East Asian groups is distinguishable in genetics if personal genome data are available. In general, genetic differences between Japanese and Han Chinese are larger than that between Korean and Han Chinese. ![]() The genetic distinctions among the three East Asian groups initially resulted from population divergence due to pre-historical or historical migrations. Subsequently, different geographical locations where the three populations are living, the mainland of China, the Korean Peninsula and the Japanese archipelago, respectively, apparently facilitated population differentiation.Īpart from the overall genome-wide differentiation, genes showing considerable differences have also been identified among the three groups. For example, several highly differentiated variants are enriched in the CD46 gene which is located on chromosome 1. It’s thought that this gene might be associated with human adaptation to pathogens in different local regions. In addition, the protein encoded by this gene may be involved in the fusion of the spermatozoa with the oocyte during fertilization and thus might be related to reproductive traits, although further studies are necessary to validate these signals and interpretations. ![]() This study does not fully address the initial settlement of people in these three countries further research is needed to disentangle the complex history of the three most influential ethnic groups in East Asia. Stephen m Pollington 17th January 2019 23:49 Genetic basis of distinct phenotypic variations among the three ethnic groups also remains to be resolved by future studies. You are absolutely WRONG in your assumption that you can have a “PURE” gene.Įvery human carries a set of common genes that tie us back to one common ancestor so in that regard there is no purity. Within genetic groups, there is differentiation of genetic makeup. One Han may carry 10 to 20% more Korean genes than his cousin does, yet he’s still referred to as a Han genetically because of a preponderance of his genetic makeup. ![]()
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