Evidence map›Paper›PMID 23776215›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Molecular hyperdiversity defines populations of the nematode Caenorhabditis brenneri.

Alivia Dey, Cecilia K W Chan, Cristel G Thomas, Asher D Cutter

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing 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

64 citing papers in PubMed.

  1. T2T genomes ofGenome research · 2026
    Article
  2. Article
  3. bioRxiv : the preprint server for biology · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Hybrid incompatibility emerges at the one-cell stage in interspeciesbioRxiv : the preprint server for biology · 2025
    Article
  10. Article
  11. The long and short of hyperdivergent regions.Trends in genetics : TIG · 2025
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. A Blind-Identification Test onPlants (Basel, Switzerland) · 2023
    Article

4 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

4 authors.

Alivia DeyDepartment of Ecology and Evolutionary Biology, University of Toronto, ON, Canada M5S 3B2.
Cecilia K W Chan
Cristel G Thomas
Asher D Cutter

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The biology of Sydney Brenner's eponymous species of nematode, Caenorhabditis brenneri, is little known to science, despite its famous sibling Caenorhabditis elegans. Here we demonstrate that C. brenneri harbors the most molecular diversity of any eukaryote, with its 14.1% of polymorphic synonymous sites between individuals being 150-fold greater than humans and most comparable to hyperdiverse bacteria. This diversity is not an artifact of cryptic species divergence but reflects an enormous pan-tropical population, confirmed by fully viable genetic crosses between continents, extensive intralocus recombination, selection on codon use, and only weak geographic genetic structure. These findings in an animal galvanize tests of theory about the evolution of complexity in genomes and phenotypes and enable molecular population genetics methods to finely resolve uncharacterized functional noncoding elements.

Indexed as

Genetic VariationAnimalsBase SequenceCaenorhabditisCodonDNA, HelminthEvolution, MolecularGenetics, PopulationGenome, HelminthModels, GeneticMolecular Sequence DataMutationPopulation DensitySelection, GeneticCodonDNA, Helminthbiodiversitygenetic variationgenome evolutionmolecular evolutionnucleotide polymorphism

Identifiers

PMID23776215
PMCPMC3703985

What OpenQuestion holds

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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.