Evidence map›Paper›PMID 32654645›Full record

SynthesisPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2020

Evolutionary dynamics of pre- and postzygotic reproductive isolation in cichlid fishes.

Sina J Rometsch, Julián Torres-Dowdall, Axel Meyer

Open access · greenAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
4.5field-weighted citation impact, top 5% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. The Reproductive Success ofAnimals : an open access journal from MDPI · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. On the completion of speciation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  16. Towards the completion of speciation: the evolution of reproductive isolation beyond the first barriers.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    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

3 authors at 1 institution in 1 country.

Sina J RometschDepartment of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
Julián Torres-DowdallDepartment of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
Axel MeyerDepartment of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
University of Konstanz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cichlid fishes are exceptionally species-rich, speciated at explosive rates and, hence, are a model system in speciation research. Yet, their reproductive isolating barriers have, so far, not been comprehensively studied. Here, we review current knowledge on pre- and postzygotic mechanisms in cichlids. While premating isolation is the norm in cichlids, its strength varies across lineages and with the geographical setting. Moreover, manipulations of ambient conditions tended to reduce assortative mating among closely related species, suggesting that premating isolation in cichlids is often fragile and context dependent. The observed lack of complete reproductive isolation is supported by past and present hybridization events that have contributed to diversity by creating novel allelic combinations. On the other hand, our meta-analysis highlights that intrinsic postzygotic isolation might accumulate faster than assumed. Mild forms of genetic incompatibilities, such as sex ratio distortion, can already be observed among closely related species. Therefore, cessation of gene flow by strong reproductive isolation in cichlids requires a combination of premating prezygotic isolation supplemented with intrinsic and extrinsic postzygotic barriers. Further, we suggest crucial next steps to improve our knowledge about reproductive barriers in cichlids to understand the evolutionary dynamics of pre- and postzygotic isolation mechanisms during adaptive radiations. This article is part of the theme issue 'Towards the completion of speciation: the evolution of reproductive isolation beyond the first barriers'.

Indexed as

Gene FlowGenetic SpeciationHybridization, GeneticReproductive IsolationAnimalsCichlidsFemaleMalecichlidspostzygotic reproductive isolationprezygotic reproductive isolationreproductive isolationsex ratio distortion

Identifiers

PMID32654645
PMCPMC7423275
OpenAlexW3041359687

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.