Evidence map›Paper›PMID 12399371›Full record

ArticleGenetics2002

Fitness evolution and the rise of mutator alleles in experimental Escherichia coli populations.

Aaron C Shaver, Peter G Dombrowski, Joseph Y Sweeney, Tania Treis, Renata M Zappala, Paul D Sniegowski

Abstract read
In one paragraph

Article in Genetics, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Recent insights into the evolution of mutation rates in yeast.Current opinion in genetics & development · 2022
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Sign of selection on mutation rate modifiers depends on population size.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  20. Article

10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Aaron C ShaverDepartment of Biology, University of Pennsylvania, Philadelphia 19104, USA.
Peter G Dombrowski
Joseph Y Sweeney
Tania Treis
Renata M Zappala
Paul D Sniegowski

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We studied the evolution of high mutation rates and the evolution of fitness in three experimental populations of Escherichia coli adapting to a glucose-limited environment. We identified the mutations responsible for the high mutation rates and show that their rate of substitution in all three populations was too rapid to be accounted for simply by genetic drift. In two of the populations, large gains in fitness relative to the ancestor occurred as the mutator alleles rose to fixation, strongly supporting the conclusion that mutator alleles fixed by hitchhiking with beneficial mutations at other loci. In one population, no significant gain in fitness relative to the ancestor occurred in the population as a whole while the mutator allele rose to fixation, but a substantial and significant gain in fitness occurred in the mutator subpopulation as the mutator neared fixation. The spread of the mutator allele from rarity to fixation took >1000 generations in each population. We show that simultaneous adaptive gains in both the mutator and wild-type subpopulations (clonal interference) retarded the mutator fixation in at least one of the populations. We found little evidence that the evolution of high mutation rates accelerated adaptation in these populations.

Indexed as

Bacterial ProteinsBiological EvolutionDNA-Binding ProteinsMutationSelection, GeneticAdenosine TriphosphatasesBase Pair MismatchDNA RepairEscherichia coliEscherichia coli ProteinsMutL ProteinsMutS DNA Mismatch-Binding ProteinSequence Analysis, DNAAdenosine TriphosphatasesBacterial ProteinsDNA-Binding ProteinsEscherichia coli ProteinsMutL protein, E coliMutL ProteinsMutS DNA Mismatch-Binding ProteinMutS protein, E coli

Identifiers

PMID12399371
PMCPMC1462288

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.