A role for sperm in regulation of egg-laying in the Nematode C. elegans
2007
How Sperm Affects Egg-Laying in C. elegans
Sample size: 36
publication
10 minutes
Evidence: high
Author Information
Author(s): Marie McGovern, Ling Yu, Mary Kosinski, David Greenstein, Cathy Savage-Dunn
Primary Institution: Queens College, CUNY
Hypothesis
Does sperm play a role in regulating egg-laying in the nematode C. elegans?
Conclusion
Sperm promotes egg laying in C. elegans by providing a signal that requires fertilization to function.
Supporting Evidence
- Mutant egl-32 animals retain about twice as many eggs as wild-type animals.
- Wild-type sperm can rescue the egg-laying defect of egl-32 mutant animals.
- The introduction of mutant egl-32 sperm into wild-type hermaphrodites induces an egg-laying defective phenotype.
Takeaway
Sperm helps worms lay eggs, and if they don't have sperm, they won't lay as many eggs.
Methodology
The study involved genetic screens, mating experiments, and assays to quantify egg laying and retention.
Limitations
The study may not account for all factors influencing egg-laying behavior in C. elegans.
Participant Demographics
C. elegans hermaphrodites and males were used in the experiments.
Statistical Information
P-Value
1.74 × 10-14
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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