Evidence map›Paper›PMID 25833852›Full record

ArticleProceedings. Biological sciences2015

Sex-chromosome differentiation and 'sex races' in the common frog (Rana temporaria).

Nicolas Rodrigues, Yvan Vuille, Jon Loman, Nicolas Perrin

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Sex-chromosome evolution in frogs: what role for sex-antagonistic genes?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Demographic and genetic consequences of disturbed sex determination.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  13. Using conventionalPeerJ · 2017
    Article
  14. Article
  15. Article
  16. 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

4 authors.

Nicolas RodriguesDepartment of Ecology and Evolution, University of Lausanne, Lausanne 1015, Switzerland nicolas.rodrigues@unil.ch.
Yvan VuilleDepartment of Ecology and Evolution, University of Lausanne, Lausanne 1015, Switzerland.
Jon LomanRana Konsult, Sjöstorp 332, Dalby 247 94, Sweden.
Nicolas PerrinDepartment of Ecology and Evolution, University of Lausanne, Lausanne 1015, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sex-chromosome differentiation was recently shown to vary among common frog populations in Fennoscandia, suggesting a trend of increased differentiation with latitude. By rearing families from two contrasted populations (respectively, from northern and southern Sweden), we show this disparity to stem from differences in sex-determination mechanisms rather than in XY-recombination patterns. Offspring from the northern population display equal sex ratios at metamorphosis, with phenotypic sexes that correlate strongly with paternal LG2 haplotypes (the sex chromosome); accordingly, Y haplotypes are markedly differentiated, with male-specific alleles and depressed diversity testifying to their smaller effective population size. In the southern population, by contrast, a majority of juveniles present ovaries at metamorphosis; only later in development do sex ratios return to equilibrium. Even at these later stages, phenotypic sexes correlate only mildly with paternal LG2 haplotypes; accordingly, there are no recognizable Y haplotypes. These distinct patterns of gonadal development fit the concept of 'sex races' proposed in the 1930s, with our two populations assigned to the 'differentiated' and 'semi-differentiated' races, respectively. Our results support the suggestion that 'sex races' differ in the genetic versus epigenetic components of sex determination. Analysing populations from the 'undifferentiated race' with high-density genetic maps should help to further test this hypothesis.

Indexed as

Genetic LinkageRecombination, GeneticSex RatioAnimalsBiological EvolutionFemaleGenetic MarkersHaplotypesMaleRana temporariaSex CharacteristicsSex ChromosomesSwedenGenetic Markersepigenetic sex determinationgonadal developmentsex ratioXY recombination

Identifiers

PMID25833852
PMCPMC4426610

What OpenQuestion holds

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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.