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Updated: Jun 3, 2025
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Isolation of Murine Spermatogenic Cells using a Violet-Excited Cell-Permeable DNA Binding Dye
Published on: January 14, 2021
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Silent cells? Potential for context-dependent gene expression in mature sperm.
Rowan A Lymbery1,2, Francisco Garcia-Gonzalez1,3, Jonathan P Evans1
1Centre for Evolutionary Biology, School of Biological Sciences, University of Western Australia, Crawley, Australia.
Proceedings. Biological Sciences
|January 8, 2025
Summary
Sperm may not be silent. Emerging evidence suggests ejaculated sperm might express genes, challenging traditional views and opening new research avenues in reproductive biology and evolution.
Area of Science:
- Reproductive Biology
- Sperm Cell Biology
- Molecular Genetics
Background:
- Spermatozoa are traditionally considered transcriptionally and translationally silent.
- Components of gene expression machinery are found in ejaculated sperm, questioning this dogma.
Purpose of the Study:
- To critically evaluate evidence for active gene expression in ejaculated sperm.
- To explore the potential for transcription and translation in sperm.
- To investigate the link between sperm gene expression and phenotypic plasticity.
Main Methods:
- Review of recent evidence on sperm transcription and translation capabilities.
- Analysis of differential transcript quantities in various post-ejaculation environments.
- Examination of phenotypic plasticity in sperm and its potential genetic underpinnings.
Main Results:
- Evidence suggests spermatozoa may retain the capacity for genome transcription and translation.
- Sperm cells show differential transcript quantities dependent on post-ejaculation conditions.
- Phenotypic plasticity in sperm may be mechanistically linked to gene expression changes.
Conclusions:
- Indirect evidence raises the possibility of active gene expression in ejaculated sperm.
- Emerging technologies may allow direct testing of sperm genome transcription.
- Findings have broad implications for evolutionary, ecological, clinical, and applied reproductive sectors.
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