Evidence map›Paper›PMID 29507206›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

Genetic signatures of microbial altruism and cheating in social amoebas in the wild.

Suegene Noh, Katherine S Geist, Xiangjun Tian, Joan E Strassmann, David C Queller

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. 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
13.7field-weighted citation impact, top 1% 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, 61 citations in OpenAlex.

  1. Review
  2. Hypermutable hotspot enables the rapid evolution of self/non-self recognition genes inProceedings of the National Academy of Sciences of the United States of America · 2025
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  5. Reduced social function in experimentally evolvedProceedings. Biological sciences · 2023
    Article
  6. Article
  7. Open questions in the social lives of viruses.Journal of evolutionary biology · 2023
    Review
  8. Article
  9. Article
  10. Kin selection for cooperation in natural bacterial populations.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Review
  12. Article
  13. Article
  14. WildEcology and evolution · 2020
    Article
  15. Article
  16. Article
  17. What life is for: a commentary on Fromhage and Jennions.Proceedings. Biological sciences · 2019
    Article
  18. Review
  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

5 authors at 2 institutions in 1 country.

Suegene NohDepartment of Biology, Washington University in St. Louis, St. Louis, MO 63130.
Katherine S GeistDepartment of Biology, Washington University in St. Louis, St. Louis, MO 63130.
Xiangjun TianThe Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, TX 77030.
Joan E StrassmannDepartment of Biology, Washington University in St. Louis, St. Louis, MO 63130.ORCID 0000-0003-0638-8440
David C QuellerDepartment of Biology, Washington University in St. Louis, St. Louis, MO 63130; queller@wustl.edu.
Washington University in St. Louis · USBaylor College of Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many microbes engage in social interactions. Some of these have come to play an important role in the study of cooperation and conflict, largely because, unlike most animals, they can be genetically manipulated and experimentally evolved. However, whereas animal social behavior can be observed and assessed in natural environments, microbes usually cannot, so we know little about microbial social adaptations in nature. This has led to some difficult-to-resolve controversies about social adaptation even for well-studied traits such as bacterial quorum sensing, siderophore production, and biofilms. Here we use molecular signatures of population genetics and molecular evolution to address controversies over the existence of altruism and cheating in social amoebas. First, we find signatures of rapid adaptive molecular evolution that are consistent with social conflict being a significant force in nature. Second, we find population-genetic signatures of purifying selection to support the hypothesis that the cells that form the sterile stalk evolve primarily through altruistic kin selection rather than through selfish direct reproduction. Our results show how molecular signatures can provide insight into social adaptations that cannot be observed in their natural context, and they support the hypotheses that social amoebas in the wild are both altruists and cheaters.

Indexed as

Adaptation, PhysiologicalDictyosteliumEvolution, MolecularGene Expression RegulationGenetic VariationGenome, ProtozoanSelection, GeneticaltruismcheatingDictyostelium discoideumkin selectionsocial amoeba

Identifiers

PMID29507206
PMCPMC5866591
OpenAlexW2793234661

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.