Evidence map›Paper›PMID 17277358›Full record

ArticleGenetics2007

Diversity in mating behavior of hermaphroditic and male-female Caenorhabditis nematodes.

L Rene Garcia, Brigitte LeBoeuf, Pamela Koo

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

71 citing papers in PubMed, 128 citations in OpenAlex.

  1. Fertility reversibly modulatesbioRxiv : the preprint server for biology · 2026
    Article
  2. A Male Expressed Copulatory Plug Increases Female Fertility inbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Widespread sex ratio polymorphism inRoyal Society open science · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

11 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

3 authors at 1 institution in 1 country.

L Rene GarciaDepartment of Biology, Texas A&M University, College Station, Texas 77843-3258, USA. rgarcia@mail.bio.tamu.edu
Brigitte LeBoeuf
Pamela Koo
Texas A&M University · US

Funding

Genetic Regulation of Mating Behavior in C. elegan MalesR01GM070431 · NIGMS · TEXAS A&M UNIVERSITY SYSTEM · PI GARCIA, LUIS RENE · 2003 to 2009
$1.7M
NIGMS NIH HHS GM70431NIGMS NIH HHS R01 GM070431
6 · The paper itself

Abstract

In this study, we addressed why Caenorhabditis elegans males are inefficient at fertilizing their hermaphrodites. During copulation, hermaphrodites generally move away from males before they become impregnated. C. elegans hermaphrodites reproduce by internal self-fertilization, so that copulation with males is not required for species propagation. The hermaphroditic mode of reproduction could potentially relax selection for genes that optimize male mating behavior. We examined males from hermaphroditic and gonochoristic (male-female copulation) Caenorhabditis species to determine if they use different sensory and motor mechanisms to control their mating behavior. Instead, we found through laser ablation analysis and behavioral observations that hermaphroditic C. briggsae and gonochoristic C. remanei and Caenorhabditis species 4, PB2801 males produce a factor that immobilizes females during copulation. This factor also stimulates the vulval slit to widen, so that the male copulatory spicules can easily insert. C. elegans and C. briggsae hermaphrodites are not affected by this factor. We suggest that sensory and motor execution of mating behavior have not significantly changed among males of different Caenorhabditis species; however, during the evolution of internal self-fertilization, hermaphrodites have lost the ability to respond to the male soporific-inducing factor.

Indexed as

AnimalsBiological EvolutionCaenorhabditisCaenorhabditis elegansCaenorhabditis elegans ProteinsCloacaDisorders of Sex DevelopmentDNA-Binding ProteinsFemaleGenes, HelminthMaleModels, BiologicalMutationNeuronsSexual Behavior, AnimalSpecies SpecificityCaenorhabditis elegans ProteinsDNA-Binding Proteinsfog-2 protein, C elegansTranscription Factors

Identifiers

PMID17277358
PMCPMC1855125
OpenAlexW1994213670

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.