Kristoffer Krogerus

@suregork.bsky.social

Senior Scientist at VTT Finland. I work with yeast and beer.

Just found my great grandfather's nearly 100 old thesis at our summer cottage. Rolf was an entomologist, and the title translated to "ON THE ECOLOGY AND DISTRIBUTION OF ARTHROPODS IN THE DRIFT SAND AREAS ALONG THE COASTS OF FINLAND".

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New preprint from the lab: we show that the ability to switch mating type was lost at least 13 times independently in the evolution of S. cerevisiae. At least 27% of isolates are heterothallic with a strong association with polyploidy and heterozygosity www.biorxiv.org/content/10.1...

Repeated losses of self-fertility shaped heterozygosity and polyploidy in yeast evolution

Evolutionary transitions in mating strategy have profound consequences for genetic variation and adaptation. In Saccharomyces cerevisiae, mating-type switching is a central feature of the life cycle t...

biorxiv.org

Interested in how omics data sets can be used for brewing yeast development? Here is a short overview how recent data sets derived from the 1011 yeast genomes project can be used to identify potentially interesting strains for brewing. doi.org/10.1002/yea.... #yeast #saccharomyces #beer

Creating Better Brewing Yeast With the 1011 Yeast Genomes Data Sets

An overview of how large-scale omics data sets can be exploited for brewing yeast strain development.

doi.org

Has anyone ever notice peptone brand would influence antibiotic resistance in #yeast? We suddenly started having issues with our transformations with NAT and HYG selection (no colonies appearing with plasmids that have worked well before).