Saccharomyces eubayanus

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Saccharomyces eubayanus
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Saccharomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Saccharomyces
Species: S. eubayanus
Binomial name
Saccharomyces eubayanus

Saccharomyces eubayanus, a type of yeast, is a likely parent of the lager brewing yeast, Saccharomyces pastorianus.[1][2]

Lager is a type of beer created from malted barley and fermented at low temperatures, originally in Bavaria. S. eubayanus was discovered in Patagonia, possibly being an example of Columbian exchange.[3][4]

The South American origins of S. eubayanus have been subsequently challenged by genomic and phylogenetic evidence suggesting a Tibetan origin. The authors of this study argue that their result also "corresponds better with geography and world trade history."[5]


  1. ^ Welsh, Jennifer. "'Missing' Lager Brewing Yeast Discovered in Patagonia". Retrieved 2011-08-23. 
  2. ^ Kaiser, Tiffany. "Lager's Mystery Yeast Discovered in Argentina". Retrieved 2011-08-23. 
  3. ^ Morrison, David. "Lager beer and phylogenetic networks". Retrieved 29 October 2014. 
  4. ^ Libkind D, Hittinger C, Valério E, Gonçalves C, Dover J, Johnston M, Gonçalves P, Sampaio J. (23 August 2011), "Microbe domestication and the identification of the wild genetic stock of lager-brewing yeast", PNAS 108 (34), doi:10.1073/pnas.1105430108, PMC 3167505, PMID 21873232 
  5. ^ Bing J; et al. (May 2014), "Evidence for a Far East Asian origin of lager beer yeast", Genome Biology 24