A Jilin University team reconstructs mitochondrial genomes of the Gansu-Qinghai Qijia culture (c. 2300–1500 BCE), tracing maternal diversity and links to later populations on the Tibetan Plateau.
Analyzing mtDNA and Y-chromosome markers in 445 individuals from seven East Asian populations, this study reveals the complex origins of the Korean people: southern ancestry contributes about 35% to the maternal gene pool but as much as 83% to the paternal one, indicating markedly sex-biased gene flow.
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