Postglacial migration shaped the genomic diversity and global distribution of the wild ancestor of lager-brewing hybrids.

ABSTRACT: The wild, cold-adapted parent of hybrid lager-brewing yeasts, Saccharomyces eubayanus, has a complex and understudied natural history. The exploration of this diversity can be used both to develop new brewing applications and to enlighten our understanding of the dynamics of yeast evolution in the wild. Here, we integrate whole genome sequence and phenotypic data of 200 S. eubayanus strains, the largest collection known to date. S. eubayanus has a multilayered population structure, consisting of two major populations that are further structured into six subpopulations. Four of these subpopulations are found exclusively in the Patagonian region of South America; one is found predominantly in Patagonia and sparsely in Oceania and North America; and one is specific to the Holarctic ecozone. P

SUBMITTER: Langdon QK 

PROVIDER: S-EPMC7162524 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature