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Related Experiment Video

Updated: Jul 15, 2025

Author Spotlight: Examining Volatile Sex Pheromone Influence on Male C. elegans Behavior

Author Spotlight: Examining Volatile Sex Pheromone Influence on Male C. elegans Behavior

Published on: August 9, 2024

Evolutionarily conserved behavioral plasticity enables context-dependent mating in C. elegans.

Vladislav Susoy¹, Aravinthan D T Samuel¹

¹Department of Physics and Center for Brain Science, Harvard University, Cambridge, MA 02138, USA.

Current Biology : CB

|September 28, 2023

Summary

This summary is machine-generated.

C. elegans males exhibit behavioral plasticity, switching from 2D parallel mating on surfaces to 3D spiral mating in liquids. This experience-dependent mating behavior is conserved across Caenorhabditis species.

Keywords:

C. elegans behavioral plasticity evolution mating phenotypic plasticity

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Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations

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Published on: May 5, 2021

Area of Science:

Ethology
Neurobiology
Developmental Biology

Background:

Behavioral plasticity enables adaptation to diverse environments in many species.
Innate behaviors, like mating, are often considered stereotyped, particularly in invertebrates.
The nematode C. elegans is a model organism for studying behavior and development.

Purpose of the Study:

To investigate behavioral plasticity in C. elegans mating behavior.
To characterize the environmental conditions influencing C. elegans mating strategies.
To explore the developmental and experiential factors affecting mating plasticity.

Main Methods:

Observation of C. elegans mating behavior on agar plates and in liquid media.
Analysis of mating strategy transitions between 2D and 3D environments.
Investigation of experience-dependent learning and critical periods for mating plasticity.
Comparative analysis of mating behaviors across different C. elegans wild isolates and related species.

Main Results:

C. elegans males display distinct mating strategies: parallel mating (2D) on surfaces and spiral mating (3D) in liquids.
Spiral mating is an experience-dependent behavior that improves with practice.
A critical developmental window, coinciding with neurogenesis, influences the acquisition of spiral mating.
Most tested C. elegans and related species exhibit both parallel and spiral mating capabilities.

Conclusions:

C. elegans mating strategies are examples of conditional phenotypic plasticity, not fixed innate behaviors.
The ability to switch between 2D and 3D mating is a conserved trait within the Caenorhabditis genus.
Environmental context and experience shape complex behaviors, even those considered innate.