Genome evolution in yeasts
Article Abstract:
The assembled genome sequences of four yeast species, selected to represent a broad evolutionary range within a single eukaryotic phylum after examination proved molecularly as diverse as the entire phylum of chordates. Studies of chromosome maps and genome redundancies indicate that the different yeast lineages have developed through a marked interplay between several distinct molecular mechanisms, including tandem gene repeat formation, segmental duplication, a massive genome duplication and extensive gene loss.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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Protein-only transmission of three yeast prion strains
Article Abstract:
The protein only nature of prion strains in a yeast model, the [PSI] genetic element that enhances the read-through of nonsense mutations in the yeast is demonstrated. Results demonstrate that [PSI] strains are propagated by infectious amyloid aggregates of the Sup35 prion-forming domain, thus resolving current ambiguity regarding the molecular nature of [PSI] and the mechanism for its strain variations.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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Resource competition and social conflict in experimental populations of yeast
Article Abstract:
The outcome of global competition is investigated by competing isogenic respirer and respiro-fermenter yeast strains in glucose-limited chemostats. The cheater has a higher fitness than the cooperator in the chemostat and competition results in exclusion of the cooperator.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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