Cited by 577Microtubule and mitosis dynamicsFungal and yeast genetics researchChromosomal and Genetic Variations

Aneuploidy confers quantitative proteome changes and phenotypic variation in budding yeast

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Pavelka, Norman, Rancati, Giulia, Zhu, Jin, Bradford, William D., Saraf, Anita, Florens, Laurence, Sanderson, Brian W., Hattem, Gaye L. +1 more·2010·Nature

Abstract

Aneuploidy, referring here to genome contents characterized by abnormal numbers of chromosomes, has been associated with developmental defects, cancer and adaptive evolution in experimental organisms. However, it remains unresolved how aneuploidy impacts gene expression and whether aneuploidy could directly bring about phenotypic variation and improved fitness over that of euploid counterparts. Here we show, using quantitative mass spectrometry-based proteomics and phenotypic profiling, that levels of protein expression in aneuploid yeast strains largely scale with chromosome copy numbers, following the same trend as that observed for the transcriptome, and that aneuploidy confers diverse phenotypes. We designed a novel scheme to generate, through random meiotic segregation, 38 stable and fully isogenic aneuploid yeast strains with distinct karyotypes and genome contents between 1N and 3N without involving any genetic selection. Through quantitative growth assays under various conditions or in the presence of a panel of chemotherapeutic or antifungal drugs, we found that some aneuploid strains grew significantly better than euploid control strains under conditions suboptimal for the latter. These results provide strong evidence that aneuploidy directly affects gene expression at both the transcriptome and proteome levels and can generate significant phenotypic variation that could bring about fitness gains under diverse conditions. Our findings suggest that the fitness ranking between euploid and aneuploid cells is dependent on context and karyotype, providing the basis for the notion that aneuploidy can directly underlie phenotypic evolution and cellular adaptation.

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  • C. albicans, like S. cerevisiae, generates large scale genetic variation as a means of adaptation.

    “Thus, C. albicans like S. cerevisiae (Gresham et al., 2008; Pavelka et al., 2010; Yona et al., 2012; Chang et al., 2013) generates large scale genetic variation as a means of adaptation.”

    From The evolution of drug resistance in clinical isolates of Candida albicans. (2015) · cites this paper as Pavelka et al., 2010

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Authors
Pavelka, N., Rancati, G., Zhu, J., Bradford, W. D., Saraf, A., Florens, L., Sanderson, B. W., Hattem, G. L., & Li, R.
Affiliations
Stowers Institute for Medical Research (US)
Corresponding author
Li, Rong
Venue
Nature
Published
2010-10-20
Volume
468
Issue
7321
Pages
321-325
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1971013077
Cited by
577
References
25
Citations by year
2026: 15 · 2025: 30 · 2024: 31 · 2023: 36 · 2022: 23 · 2021: 39 · 2020: 29 · 2019: 35 · 2018: 37 · 2017: 35 · 2016: 40 · 2015: 64 · 2014: 41 · 2013: 45 · 2012: 44
FWCI
16.77
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of General Medical Sciences (R01GM059964)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
aneuploidy, Saccharomyces cerevisiae, proteome, transcriptome, phenotypic variability, fitness, chromosome copy number, karyotype, drug resistance, antifungal susceptibility, phenotypic evolution, cellular adaptation
MeSH terms
Aneuploidy, Antifungal Agents, Cell Division, Karyotyping, Meiosis, Phenotype, Polyploidy, Saccharomyces cerevisiae, Stress, Physiological, Transcription, Genetic, Chromosomes, Fungal, Gene Expression Regulation, Fungal, Proteome, Gene Expression Profiling, Proteomics, Genetic Fitness

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