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Updated: Jul 5, 2025

Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
Natural trait variation across Saccharomycotina species
Johnson J-T Wang1, Jacob L Steenwyk2, Rachel B Brem1
1Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
The Saccharomycotina subphylum of yeasts, widely used as model organisms, exhibits surprising diversity in traits like pigmentation, cell shape, metabolism, and gene regulation. This genetic variation offers insights into eukaryotic evolution.
Area of Science:
- * Molecular Biology
- * Mycology
- * Evolutionary Biology
Background:
- * The Saccharomycotina subphylum is renowned for its yeasts, frequently utilized as model organisms in molecular biology due to shared genetic and cellular characteristics.
- * Despite their perceived homogeneity, Saccharomycotina species display significant underlying variations.
Conclusions:
- * The Saccharomycotina subphylum harbors substantial hidden diversity, challenging the notion of a uniform model organism group.
- * Understanding this variation provides critical insights into fundamental evolutionary principles applicable across Eukarya.
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