Evidence map›Paper›PMID 35575545›Full record

ArticlemBio2022

Complex Ecotype Dynamics Evolve in Response to Fluctuating Resources.

Megan G Behringer, Wei-Chin Ho, John C Meraz, Samuel F Miller, Gwyneth F Boyer, Carl J Stone, Meredith Andersen, Michael Lynch

Open access · goldAbstract read
In one paragraph

Article in mBio, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
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

19 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
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  8. Ecological diversification in rapidly evolving populations.bioRxiv : the preprint server for biology · 2025
    Article
  9. Review
  10. Article
  11. Genome and transcriptomic analysis of the adaptation ofComputational and structural biotechnology journal · 2024
    Review
  12. Evolution of pH-sensitive transcription termination inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. A purine salvage bottleneck leads to bacterial adenine cross-feeding.bioRxiv : the preprint server for biology · 2023
    Article
  17. Article
  18. Article
  19. Article
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

8 authors at 2 institutions in 1 country.

Megan G Behringer *Department of Biological Sciences, Vanderbilt Universitygrid.152326.1, Nashville, Tennessee, USA.ORCID 0000-0001-7036-6014
Wei-Chin Ho *Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.ORCID 0000-0002-0848-2476
John C MerazBiodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.
Samuel F MillerBiodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.
Gwyneth F BoyerBiodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.
Carl J StoneDepartment of Biological Sciences, Vanderbilt Universitygrid.152326.1, Nashville, Tennessee, USA.
Meredith AndersenDepartment of Biological Sciences, Vanderbilt Universitygrid.152326.1, Nashville, Tennessee, USA.
Michael LynchBiodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.
Arizona State University · USVanderbilt University · US

Funding

Causes and Population-genetic Consequences of Molecular VariationR35GM122566 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI Michael R LYNCH · 2017 to 2026
$7.7M
Genetic and Environmental Determinants of Population Structure During Escherichia coli Experimental Evolution.F32GM123703 · NIGMS · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI BEHRINGER, MEGAN GRACE · 2017 to 2018
$118k
NIGMS NIH HHS F32 GM123703NIGMS NIH HHS R35 GM122566
6 · The paper itself

Abstract

Ecotypic diversification and its associated cooperative behaviors are frequently observed in natural microbial populations whose access to resources is often sporadic. However, the extent to which fluctuations in resource availability influence the emergence of cooperative ecotypes is not fully understood. To determine how exposure to repeated resource limitation affects the establishment and long-term maintenance of ecotypes in a structured environment, we followed 32 populations of Escherichia coli evolving to either 1-day or 10-day feast/famine cycles for 900 days. Population-level analysis revealed that compared to populations evolving to 1-day cycles, 10-day populations evolved increased biofilm density, higher parallelism in mutational targets, and increased mutation rates. As previous investigations of evolution in structured environments have identified biofilm formation as the earliest observable phenotype associated with diversification of ecotypes, we revived cultures midway through the evolutionary process and conducted additional genomic, transcriptional, and phenotypic analyses of clones isolated from these evolving populations. We found not only that 10-day feast/famine cycles support multiple ecotypes but also that these ecotypes exhibit cooperative behavior. Consistent with the black queen hypothesis, or evolution of cooperation by gene loss, transcriptomic evidence suggests the evolution of bidirectional cross-feeding behaviors based on essential resources. These results provide insight into how analogous cooperative relationships may emerge in natural microbial communities.

Indexed as

EcotypeEscherichia coliGenomicsPhenotypeblack queen hypothesisEscherichia coliexperimental evolutionintraspecific cooperationstarvation

Identifiers

PMID35575545
PMCPMC9239185
OpenAlexW4280607026

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.