Evidence map›Paper›PMID 11514443›Full record

ArticleGenetics2001

Specification of germ cell fates by FOG-3 has been conserved during nematode evolution.

P J Chen, S Cho, S W Jin, R E Ellis

Abstract read
In one paragraph

Article in Genetics, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.8field-weighted citation impact, top 36% 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

28 citing papers in PubMed, 57 citations in OpenAlex.

  1. Review
  2. Article
  3. TheiScience · 2025
    Article
  4. Article
  5. Article
  6. Sex Determination in Nematode Germ Cells.Sexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The regulation of spermatogenesis and sperm function in nematodes.Seminars in cell & developmental biology · 2014
    Review
  14. Review
  15. TRA-1 ChIP-seq reveals regulators of sexual differentiation and multilevel feedback in nematode sex determination.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  16. Article
  17. Independent recruitments of a translational regulator in the evolution of self-fertile nematodes.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  18. Article
  19. Article
  20. Review
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 at 1 institution in 1 country.

P J ChenDepartment of Biology, University of Michigan, Ann Arbor, Michigan 48109, USA.
S Cho
S W Jin
R E Ellis
University of Michigan–Ann Arbor · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rapid changes in sexual traits are ubiquitous in evolution. To analyze this phenomenon, we are studying species of the genus Caenorhabditis. These animals use one of two different mating systems-male/hermaphroditic, like the model organism Caenorhabditis elegans, or male/female, like C. remanei. Since hermaphrodites are essentially females that produce sperm for self-fertilization, elucidating the control of cell fate in the germ line in each species could provide the key to understanding how these mating systems evolved. In C. elegans, FOG-3 is required to specify that germ cells become sperm. Thus, we cloned its homologs from both C. remanei and C. briggsae. Each species produces a single homolog of FOG-3, and RNA-mediated interference indicates that FOG-3 functions in each species to specify that germ cells develop as sperm rather than as oocytes. What factors account for the different mating systems? Northern analyses and RT-PCR data reveal that the expression of fog-3 is always correlated with spermatogenesis. Since the promoters for all three fog-3 genes contain binding sites for the transcription factor TRA-1A and are capable of driving expression of fog-3 in C. elegans hermaphrodites, we propose that alterations in the upstream sex-determination pathway, perhaps acting through TRA-1A, allow spermatogenesis in C. elegans and C. briggsae XX larvae but not in C. remanei.

Indexed as

Biological EvolutionCaenorhabditis elegans ProteinsAmino Acid SequenceAnimalsBase SequenceBinding SitesBlotting, NorthernCaenorhabditisCell LineageFemaleHelminth ProteinsMaleModels, GeneticMolecular Sequence DataOocytesPedigreeCaenorhabditis elegans ProteinsFOG-3 protein, C elegansHelminth ProteinsRNA

Identifiers

PMID11514443
PMCPMC1461761
OpenAlexW1945790127

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.