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Science Finds the Cross-Continental Origins of Beer Yeast

Atlas Obscura, an interesting site in its own right, covers some research in the field of microbiology, into the geographic origins of a popular yeast used in many of today's beers.

The researchers sequenced the genomes of these strains—two ale, one lager, and one that contained both beer and baking strains—and compared them to a panel of every publicly available yeast genome from around the world, plus those from additional strains in their lab. They found that the ale strains, baking strains, and the portions of lager strains consisting of S. cerevisiae "have ancestry that is a mixture of European grape wine strains and Asian rice wine strains..."