[1][2][3] Lager is a type of beer created from malted barley and fermented at low temperatures, originally in Bavaria.

S. eubayanus was first discovered in Patagonia, possibly being an example of Columbian exchange,[4][5] and is capable of fermenting glucose, along with the disaccharide maltose at reduced temperatures.

[6] The proponents of this theory argue that it "corresponds better with geography and world trade history" given the Eurasian land bridge.

[6] Since then, genomic analyses from South America strains have shown reduced genetic diversity suggesting a biogeographical radiation point from Patagonia.

[1] In 2022, a researcher team from the University College Dublin isolated Saccharomyces eubayanus from soil samples in Ireland.

A de novo assembly of the S. eubayanus genome yielded 5,515 protein-coding genes, 4,993 of which were unambiguous 1:1 orthologs to S. cerevisiae, and S.