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NEW YORK (GenomeWeb) – Three river valleys have influenced the mitochondrial genomic makeup of Han Chinese populations, a new study has found.

Han Chinese comprise about 92 percent of the Chinese population, and previous studies have suggested that there is a north-south genetic divide within Han Chinese populations. To explore this variation, researchers from the Kunming Institute of Zoology examined mitochondrial DNA from more than 21,000 Han Chinese individuals living across China.

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