Brettanomyces bruxellensis wine isolates show high geographical dispersal and long persistence in cellars.

ABSTRACT: Brettanomyces bruxellensis is the main wine spoiler yeast all over the world, yet the structure of the populations associated with winemaking remains elusive. In this work, we considered 1411 wine isolates from 21 countries that were genotyped using twelve microsatellite markers. We confirmed that B. bruxellensis isolates from wine environments show high genetic diversity, with 58 and 42% of putative triploid and diploid individuals respectively distributed in 5 main genetic groups. The distribution in the genetic groups varied greatly depending on the country and/or the wine-producing region. However, the two possible triploid wine groups showing sulfite resistance/tolerance were identified in almost all regions/countries. Genetically identical isolates were also identified. The analysis

SUBMITTER: Cibrario A 

PROVIDER: S-EPMC6919574 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature