Genetics and linguistic identity
A genetic study by Yinqiu Cui et al. from 2013 analyzed the Y-chromosome DNA haplogroup based N subclade; it found that DNA samples from 63% of the combined samples from various Hongshan archaeological sites belonged to the subclade N1 (xN1a, N1c) of the paternal haplogroup N-M231 and calculated N to have been the predominant haplogroup in the region in the Neolithic period at 89%, with its share gradually declining over time.Today, this haplogroup is found in northern Han, Mongols, Manchu, Oroqen, Xibe and Hezhe at low frequencies. Other paternal haplogroups identified in the study were C and O3a (O3a3), both of which predominate among the present-day inhabitants of the region.Nelson et al. 2020 attempts to link the Hongshan culture to a "Transeurasian" (Altaic) linguistic context.According to a study on genetic distance measurements from a large scale genetic study from 2021 titled 'Genomic insights into the formation of human populations in East Asia', hunter-gatherers of Mongolia and the Amur River Basin have ancestry shared by Mongolic and Tungusic language speakers, but they did not carry West Liao River farmer ancestry, contradicting the Transeurasian hypothesis proposed by Martine Robbeets et al. that the expansion of West Liao River farmers spread these proto-languages.A 2020 study discovered substantial genetic changes in the West Liao River region over time....
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