ArticleMicrobial biotechnology2026
Lineage-Specific Adaptive Strategies Shape the Response of de Novo Lager Yeast Hybrids to High-Gravity Fermentation.
Article in Microbial biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Lager beer is the most widely consumed fermented beverage worldwide and is produced by the yeast Saccharomyces pastorianus, which originated from hybridization between S. cerevisiae (Sc) and S. eubayanus (Se). Although the genetic factors underlying fermentation performance in de novo hybrids are well understood, how chimeric genomes evolve in relation to the parental background and stabilize under industrial stresses remains unclear. Here, we subjected representative novel hybrids derived from distinct parental lineages to long-term experimental evolution for 250 generations under conditions mimicking high-gravity brewing. We observed a clear pattern of the "rule of declining adaptability", driven by diminishing-returns epistasis, whereby hybrids with lower initial fitness exhibited the greatest evolutionary gains. Overall, 38 of 69 evolved lines produced more CO
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