Cited by 48Fungal and yeast genetics researchEvolution and Genetic DynamicsDNA Repair Mechanisms

Stress-Induced Loss of Heterozygosity in Candida : a Possible Missing Link in the Ability to Evolve

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Rosenberg, Susan M.·2011·mBio

Abstract

Diploid organisms are buffered against the effects of mutations by carrying two sets of each gene, which allows compensation if one is mutated. But recombination between "mom" and "dad" chromosomes causes loss of heterozygosity (LOH), stretches of "mom-only" or "dad-only" DNA sequence, suddenly revealing effects of mutations accumulated in entire chromosome arms. LOH creates new phenotypes from old mutations, drives cancer development and evolution, and, in a new study by Forche et al., is shown to be induced by stress in Candida albicans [Forche A, et al, mBio 2(4):e00129-11, 2011]. Stress-induced LOH could speed evolution of Candida specifically when it is poorly adapted to its environment. Moreover, the findings may provide a missing link between recombination-dependent mutagenesis in bacteria and yeast, suggesting that both might be stress induced, both maximizing genetic variation when populations could benefit most from diversity.

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  • C. albicans lab isolates likely undergo a stress-induced elevation of mutation and mitotic recombination rates.

    “Third, C. albicans lab isolates likely undergo a stress-induced elevation of mutation and mitotic recombination rates (Ponder et al., 2005; Forche et al., 2011; Rosenberg, 2011)”

    From The evolution of drug resistance in clinical isolates of Candida albicans. (2015) · cites this paper as Rosenberg, 2011

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Authors
Rosenberg, S. M.
Affiliations
Baylor College of Medicine (US)
Corresponding author
Rosenberg, Susan M.
Venue
mBio
Published
2011-11
Volume
2
Issue
5
ISSN
  • 2150-7511 (ISSN-L)
  • 2161-2129
OpenAlex
W2138925583
Cited by
32
References
25
Citations by year
2025: 2 · 2023: 9 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 2 · 2015: 3 · 2014: 1 · 2013: 2 · 2012: 3
FWCI
0.91
Type
journal article
Language
en
Open access
Locations
  • mBio (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Cancer Institute (DP1CA174424)
  • National Institute of General Medical Sciences (R01GM53158, R01GM053158)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
loss of heterozygosity, Candida albicans, stress response, diploidy, recombination, genetic variation, evolution, mutagenesis
MeSH terms
Candida albicans, Stress, Physiological, Loss of Heterozygosity

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