Study yields 'Genghis Khan' of brown bears, and brown and polar bear evolution

By mining the genome of a recently sequenced polar bear, researchers developed Y chromosome-specific markers, and analyzed several regions of the Y chromosome from a broad geographic sample of 130 brown and polar bears. "This pattern in brown bears covers even larger geographic areas than analogous findings from humans, where the Y-chromosomal lineage of Genghis Khan, founder of the Mongol Empire, was spread across much of Asia," said experts.

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