Evidence map›Paper›PMID 20661450›Full record

ArticlePLoS genetics2010

Sex reversal in zebrafish fancl mutants is caused by Tp53-mediated germ cell apoptosis.

Adriana Rodríguez-Marí, Cristian Cañestro, Ruth A Bremiller, Alexandria Nguyen-Johnson, Kazuhide Asakawa, Koichi Kawakami, John H Postlethwait

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 1 pooled it
6.1field-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

103 citing papers in PubMed, 1 synthesis or guideline pooled it, 230 citations in OpenAlex.

  1. Sex-specific differences in zebrafish brains.Biology of sex differences · 2022
    Pooled it
  2. Article
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  10. Regulation of early gonocyte differentiation in zebrafish.Biochemical Society transactions · 2025
    Article
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  16. Variant ribosomal DNA is essential for female differentiation in zebrafish.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. Article

43 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

7 authors at 2 institutions in 2 countries.

Adriana Rodríguez-MaríInstitute of Neuroscience, University of Oregon, Eugene, Oregon, United States of America.
Cristian Cañestro
Ruth A Bremiller
Alexandria Nguyen-Johnson
Kazuhide Asakawa
Koichi Kawakami
John H Postlethwait
University of Oregon · USNational Institute of Genetics · JP

Funding

ZEBRAFISH INTERNATIONAL RESOURCE CENTERP40RR012546 · NCRR · UNIVERSITY OF OREGON · PI WESTERFIELD, MONTE · 1998 to 2011
$21.9M
RESOURCES FOR TELEOST GENE DUPLICATES AND HUMAN DISEASER01RR020833 · NCRR · UNIVERSITY OF OREGON · PI POSTLETHWAIT, JOHN H. · 2005 to 2011
$3.6M
NCRR NIH HHS P40 RR012546NCRR NIH HHS R01 RR020833NCRR NIH HHS R01RR020833
6 · The paper itself

Abstract

The molecular genetic mechanisms of sex determination are not known for most vertebrates, including zebrafish. We identified a mutation in the zebrafish fancl gene that causes homozygous mutants to develop as fertile males due to female-to-male sex reversal. Fancl is a member of the Fanconi Anemia/BRCA DNA repair pathway. Experiments showed that zebrafish fancl was expressed in developing germ cells in bipotential gonads at the critical time of sexual fate determination. Caspase-3 immunoassays revealed increased germ cell apoptosis in fancl mutants that compromised oocyte survival. In the absence of oocytes surviving through meiosis, somatic cells of mutant gonads did not maintain expression of the ovary gene cyp19a1a and did not down-regulate expression of the early testis gene amh; consequently, gonads masculinized and became testes. Remarkably, results showed that the introduction of a tp53 (p53) mutation into fancl mutants rescued the sex-reversal phenotype by reducing germ cell apoptosis and, thus, allowed fancl mutants to become fertile females. Our results show that Fancl function is not essential for spermatogonia and oogonia to become sperm or mature oocytes, but instead suggest that Fancl function is involved in the survival of developing oocytes through meiosis. This work reveals that Tp53-mediated germ cell apoptosis induces sex reversal after the mutation of a DNA-repair pathway gene by compromising the survival of oocytes and suggests the existence of an oocyte-derived signal that biases gonad fate towards the female developmental pathway and thereby controls zebrafish sex determination.

Indexed as

ApoptosisMutationSex DifferentiationAnimalsCell SurvivalFanconi Anemia Complementation Group L ProteinFemaleGerm CellsMaleOocytesTumor Suppressor Protein p53ZebrafishFanconi Anemia Complementation Group L ProteinTumor Suppressor Protein p53

Identifiers

PMID20661450
PMCPMC2908690
OpenAlexW2079673371

What OpenQuestion holds

Textmetadata
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.