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Updated: Dec 21, 2025

Measuring Embryonic Viability and Brood Size in Caenorhabditis elegans

Measuring Embryonic Viability and Brood Size in Caenorhabditis elegans

Published on: February 24, 2023

Methods for Assessing Fertility in C. elegans from a Single Population.

Chia-An Yen^1,2, Sean P Curran^3,4,5

¹Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)

|May 16, 2020

Summary

This study introduces a novel method to assess both egg and sperm quality in the same group of animals. This advance aids research into reproductive aging and fertility across species.

Keywords:

Aging C. elegans Fecundity Fertility Fertility assays Oocyte quality Reproductive senescence Sperm quality Spermatogenesis

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Last Updated: Dec 21, 2025

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Published on: June 29, 2018

Area of Science:

Reproductive biology
Aging research
Genetics

Background:

Reproductive senescence is a conserved process across many species, including humans.
Fertility is influenced by genetic and environmental factors, and impacts aging rates.
The common laboratory model Caenorhabditis elegans is hermaphroditic, producing sperm then oocytes.

Purpose of the Study:

To develop a method for evaluating both oocyte and sperm quality.
To enable simultaneous assessment from a single population of C. elegans.

Main Methods:

Utilizing the C. elegans Bristol N2 strain.
Developing a novel assay for reproductive quality assessment.
Analyzing both sperm and oocyte parameters from the same cohort.

Main Results:

A method was established to assay both oocyte and sperm quality.
The assay can be performed on a single population of C. elegans.
This facilitates comprehensive reproductive health analysis.

Conclusions:

The developed method allows for parallel assessment of male and female gamete quality.
This technique can advance the study of reproductive senescence and aging.
It provides a valuable tool for C. elegans research on fertility and aging.