Evidence map›Paper›PMID 19855024›Full record

ArticleDevelopment (Cambridge, England)2009

The establishment of sexual identity in the Drosophila germline.

Abbie L Casper, Mark Van Doren

Open access · greenAbstract read
In one paragraph

Article in Development (Cambridge, England), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

33 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Trajectory mapping of the earlyGenome research · 2021
    Article
  8. Article
  9. Article
  10. An autoregulatory switch in sex-specificDevelopment (Cambridge, England) · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. 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 1 institution in 1 country.

Abbie L CasperDepartment of Biology, Johns Hopkins University, Baltimore, MD 21218, USA.
Mark Van Doren
Johns Hopkins University · US

Funding

Sexual development of the Drosophila gonadR01GM084356 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI VAN DOREN, MARK B · 2009 to 2016
$2.9M
Sexual Dimorphism in the Drosophila GonadR01HD046619 · NICHD · JOHNS HOPKINS UNIVERSITY · PI VAN DOREN, MARK B · 2004 to 2008
$1.4M
NICHD NIH HHS HD46619NIGMS NIH HHS GM084356
6 · The paper itself

Abstract

The establishment of sexual identity is a crucial step of germ cell development in sexually reproducing organisms. Sex determination in the germline is controlled differently than in the soma, and often depends on communication from the soma. To investigate how sexual identity is established in the Drosophila germline, we first conducted a molecular screen for genes expressed in a sex-specific manner in embryonic germ cells. Sex-specific expression of these genes is initiated at the time of gonad formation (stage 15), indicating that sexual identity in the germline is established by this time. Experiments where the sex of the soma was altered relative to that of the germline (by manipulating transformer) reveal a dominant role for the soma in regulating initial germline sexual identity. Germ cells largely take on the sex of the surrounding soma, although the sex chromosome constitution of the germ cells still plays some role at this time. The male soma signals to the germline through the JAK/STAT pathway, while the nature of the signal from the female soma remains unknown. We also find that the genes ovo and ovarian tumor (otu) are expressed in a female-specific manner in embryonic germ cells, consistent with their role in promoting female germline identity. However, removing the function of ovo and otu, or reducing germline function of Sex lethal, had little effect on establishment of germline sexual identity. This is consistent with our findings that signals from the soma are dominant over germline autonomous cues at the initial stage of germline sex determination.

Indexed as

Sex Determination ProcessesAnimalsDNA-Binding ProteinsDrosophila melanogasterDrosophila ProteinsFemaleGene Expression Regulation, DevelopmentalGerm CellsGonadsMaleTranscription FactorsDNA-Binding ProteinsDrosophila Proteinsotu protein, Drosophilaovo protein, DrosophilaTranscription Factors

Identifiers

PMID19855024
PMCPMC2766343
OpenAlexW2046620588

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.