Cited by 879Evolution and Genetic DynamicsLanguage and cultural evolutionPhilosophy and History of Science

Evolution of high mutation rates in experimental populations of E. coli

Sniegowski, Paul D., Gerrish, Philip J., Lenski, Richard E.·1997·Nature

Abstract

Most mutations are likely to be deleterious, and so the spontaneous mutation rate is generally held at a very low value. Nonetheless, evolutionary theory predicts that high mutation rates can evolve under certain circumstances. Empirical observations have previously been limited to short-term studies of the fates of mutator strains deliberately introduced into laboratory populations of Escherichia coli, and to the effects of intense selective events on mutator frequencies in E. coli. Here we report the rise of spontaneously originated mutators in populations of E. coli undergoing long-term adaptation to a new environment. Our results corroborate computer simulations of mutator evolution in adapting clonal populations, and may help to explain observations that associate high mutation rates with emerging pathogens and with certain cancers.

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Crossref · 10.1038/42701

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Authors
Sniegowski, P. D., Gerrish, P. J., & Lenski, R. E.
Affiliations
  • University of Pennsylvania (US)
  • Michigan State University (US)
Corresponding author
Sniegowski, Paul D.
Venue
Nature
Published
1997-06-12
Volume
387
Issue
6634
Pages
703-705
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1566245339
Cited by
879
References
30
Citations by year
2026: 13 · 2025: 24 · 2024: 24 · 2023: 20 · 2022: 28 · 2021: 44 · 2020: 41 · 2019: 34 · 2018: 27 · 2017: 44 · 2016: 46 · 2015: 33 · 2014: 32 · 2013: 39 · 2012: 33
FWCI
16.81
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Social Sciences › Cultural Studies › Language and cultural evolution
  • Social Sciences › Arts and Humanities › History and Philosophy of Science › Philosophy and History of Science
Keywords
spontaneous mutation rate, Escherichia coli, mutator strains, long-term adaptation, clonal populations, deleterious mutations, mutagenesis, emerging pathogens, cancer
MeSH terms
Adaptation, Physiological, Anti-Infective Agents, Drug Resistance, Microbial, Escherichia coli, Genetic Complementation Test, Mutation, Nalidixic Acid, Phenotype, Transformation, Bacterial, Directed Molecular Evolution, Evolution, Molecular

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