Evidence map›Paper›PMID 30314447›Full record

ArticleBMC evolutionary biology2018

Factors driving effective population size and pan-genome evolution in bacteria.

Louis-Marie Bobay, Howard Ochman

Abstract read
In one paragraph

Article in BMC evolutionary biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing 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

86 citing papers in PubMed.

  1. Why did some viruses evolve to be giants while others did not?Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
  3. A generative model for bipartite gene-sharing networks.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. The heterogeneous selection landscape of genome evolution in prokaryotes.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Article
  7. Evolutionary bioenergetics of sporulation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Article
  9. Article
  10. Review
  11. Article
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26 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

2 authors.

Louis-Marie BobayDepartment of Integrative Biology, University of Texas at Austin, Austin, TX, 78712, USA. ljbobay@uncg.edu.ORCID 0000-0002-0438-545X
Howard OchmanDepartment of Integrative Biology, University of Texas at Austin, Austin, TX, 78712, USA.

Funding

Elucidating the Evolution of Microbial Genes, Genomes and CommunitiesR35GM118038 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI OCHMAN, HOWARD · 2016 to 2025
$4.0M
Elucidating a newly discovered selective agent operating in bacterial genomesR01GM108657 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI OCHMAN, HOWARD · 2014 to 2016
$824k
NIGMS NIH HHS R01 GM108657NIGMS NIH HHS R35 GM118038NIH HHS R01GM108657NIH HHS R35GM118038
6 · The paper itself

Abstract

backgroundKnowledge of population-level processes is essential to understanding the efficacy of selection operating within a species. However, attempts at estimating effective population sizes (Ne) are particularly challenging in bacteria due to their extremely large census populations sizes, varying rates of recombination and arbitrary species boundaries.

resultsIn this study, we estimated Ne for 153 species (152 bacteria and one archaeon) defined under a common framework and found that ecological lifestyle and growth rate were major predictors of Ne; and that contrary to theoretical expectations, Ne was unaffected by recombination rate. Additionally, we found that Ne shapes the evolution and diversity of total gene repertoires of prokaryotic species.

conclusionTogether, these results point to a new model of genome architecture evolution in prokaryotes, in which pan-genome sizes, not individual genome sizes, are governed by drift-barrier evolution.

Indexed as

Evolution, MolecularGenome, BacterialArchaeaBacteriaGenome SizePhylogenyPopulation DensityRecombination, GeneticDriftEffective population sizeGene repertoiresGenome architectureProkaryotes

Identifiers

PMID30314447
PMCPMC6186134

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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.