Evidence map›Paper›PMID 20944628›Full record

ArticleNature2010

Higher rates of sex evolve in spatially heterogeneous environments.

Lutz Becks, Aneil F Agrawal

Abstract read
PubMed Publisher
In one paragraph

Article in Nature, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 148 citations in OpenAlex.

  1. Article
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  12. Adaptation in response to environmental unpredictability.Proceedings. Biological sciences · 2017
    Article
  13. Review
  14. Higher rates of sex evolve during adaptation to more complex environments.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. Diapause and maintenance of facultative sexual reproductive strategies.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Article
  17. What does the geography of parthenogenesis teach us about sex?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  18. Habitat heterogeneity favors asexual reproduction in natural populations of grassthrips.Evolution; international journal of organic evolution · 2016
    Article
  19. Article
  20. 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

2 authors at 2 institutions in 2 countries.

Lutz BecksDepartment of Ecology & Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada. lutz.becks@utoronto.ca
Aneil F Agrawal
University of Cologne · DEUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The evolution and maintenance of sexual reproduction has puzzled biologists for decades. Although this field is rich in hypotheses, experimental evidence is scarce. Some important experiments have demonstrated differences in evolutionary rates between sexual and asexual populations; other experiments have documented evolutionary changes in phenomena related to genetic mixing, such as recombination and selfing. However, direct experiments of the evolution of sex within populations are extremely rare (but see ref. 12). Here we use the rotifer, Brachionus calyciflorus, which is capable of both sexual and asexual reproduction, to test recent theory predicting that there is more opportunity for sex to evolve in spatially heterogeneous environments. Replicated experimental populations of rotifers were maintained in homogeneous environments, composed of either high- or low-quality food habitats, or in heterogeneous environments that consisted of a mix of the two habitats. For populations maintained in either type of homogeneous environment, the rate of sex evolves rapidly towards zero. In contrast, higher rates of sex evolve in populations experiencing spatially heterogeneous environments. The data indicate that the higher level of sex observed under heterogeneity is not due to sex being less costly or selection against sex being less efficient; rather sex is sufficiently advantageous in heterogeneous environments to overwhelm its inherent costs. Counter to some alternative theories for the evolution of sex, there is no evidence that genetic drift plays any part in the evolution of sex in these populations.

Indexed as

Biological EvolutionEcosystemFoodSexAnimal MigrationAnimalsDietFemaleGenetic DriftMaleMeiosisModels, BiologicalOvumPopulation DensityReproductionReproduction, Asexual

Identifiers

PMID20944628
OpenAlexW1977187384

What OpenQuestion holds

Textmetadata
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.