Evidence map›Paper›PMID 32301222›Full record

ArticleAging cell2020

Shorter life and reduced fecundity can increase colony fitness in virtual Caenorhabditis elegans.

Evgeniy R Galimov, David Gems

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

23 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. The impact of rearing environment onbioRxiv : the preprint server for biology · 2025
    Article
  5. A hierarchy of causes of death in senescentbioRxiv : the preprint server for biology · 2025
    Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Effect ofFoods (Basel, Switzerland) · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Death happy: adaptive ageing and its evolution by kin selection in organisms with colonial ecology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  19. Elevated Trehalose Levels inMetabolites · 2021
    Article
  20. Reproductive Aging inFrontiers in cell and developmental biology · 2021
    Review
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 at 1 institution in 1 country.

Evgeniy R GalimovInstitute of Healthy Ageing, and Research Department of Genetics, Evolution and Environment, University College London, London, UK.ORCID 0000-0001-8891-3362
David GemsInstitute of Healthy Ageing, and Research Department of Genetics, Evolution and Environment, University College London, London, UK.ORCID 0000-0002-6653-4676
MRC Unit for Lifelong Health and Ageing · GB

Funding

Biotechnology and Biological Sciences Research Council BB/R01356X/1
6 · The paper itself

Abstract

In the nematode Caenorhabditis elegans, loss of function of many genes leads to increases in lifespan, sometimes of a very large magnitude. Could this reflect the occurrence of programmed death that, like apoptosis of cells, promotes fitness? The notion that programmed death evolves as a mechanism to remove worn out, old individuals in order to increase food availability for kin is not supported by classic evolutionary theory for most species. However, it may apply in organisms with colonies of closely related individuals such as C. elegans in which largely clonal populations subsist on spatially limited food patches. Here, we ask whether food competition between nonreproductive adults and their clonal progeny could favor programmed death by using an in silico model of C. elegans. Colony fitness was estimated as yield of dauer larva propagules from a limited food patch. Simulations showed that not only shorter lifespan but also shorter reproductive span and reduced adult feeding rate can increase colony fitness, potentially by reducing futile food consumption. Early adult death was particularly beneficial when adult food consumption rate was high. These results imply that programmed, adaptive death could promote colony fitness in C. elegans through a consumer sacrifice mechanism. Thus, C. elegans lifespan may be limited not by aging in the usual sense but rather by apoptosis-like programmed death.

Indexed as

AnimalsCaenorhabditis elegansCellular SenescenceFertilityLongevityadaptive deathC. elegans ecologyevolutionary modellingevolution of aginginclusive fitness

Identifiers

PMID32301222
PMCPMC7253062
OpenAlexW3016670309

What OpenQuestion holds

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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.