ArticleEvolution letters2017
Egg chemoattractants moderate intraspecific sperm competition.
Article in Evolution letters, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 48 citations in OpenAlex.
- The role of female reproductive fluid in mediating reproductive isolation between ecotypes of the three-spined stickleback.Zoological letters · 2026Article
- Thirty Years of the Biology of Spermatozoa: The Rise and Future of an Evolutionary Paradigm.Ecology and evolution · 2026Article
- Phthalate exposure to adult mice alters non-coding RNAs in cauda epididymosomes.Environmental pollution (Barking, Essex : 1987) · 2025Article
- Female-mediated selective sperm activation may remodel major histocompatibility complex-based mate choice decisions in humans.Heredity · 2025Article
- Silent cells? Potential for context-dependent gene expression in mature sperm.Proceedings. Biological sciences · 2025Review
- Patterns of sperm swimming behaviour depend on male mating tactic and spawning environment in chinook salmon.Scientific reports · 2024Article
- Population density effects on gamete traits and fertilisation dynamics under varying sperm environments in mussels.Ecology and evolution · 2024Article
- Polystyrene Nanoplastics in Aquatic Microenvironments Affect Sperm Metabolism and Fertilization ofToxics · 2023Article
- Paternal environment effects are driven by female reproductive fluid but not sperm age in an external fertilizer.Biology letters · 2023Article
- Can cryptic female choice prevent invasive hybridization in external fertilizing fish?Evolutionary applications · 2023Article
- Female reproductive fluids 'rescue' sperm from phenotypic ageing in an external fertilizer.Proceedings. Biological sciences · 2023Article
- Cryptic female choice within individual males - A neglected component of the postmating sexual selection?Journal of evolutionary biology · 2022Review
- Ocean acidification alters sperm responses to egg-derived chemicals in a broadcast spawning mussel.Biology letters · 2022Article
- Female-induced selective modification of sperm protein SUMOylation-potential mechanistic insights into the non-random fertilization in humans.Journal of evolutionary biology · 2022Article
- Evolutionary consequences of environmental effects on gamete performance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- In Vitro Maturation of Cumulus-Oocyte Complexes and In Vitro Sperm Capacitation Significantly Increase the Expression and Enhance the Location of the CXCL12 and CXCR4 Anchoring Attractant Complex in Pigs.Animals : an open access journal from MDPI · 2021Article
- Indirect parental effects on offspring viability by egg-derived fluids in an external fertilizer.Proceedings. Biological sciences · 2020Article
- The role of female reproductive fluid in sperm competition.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
- Sexual selection after gamete release in broadcast spawning invertebrates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
- Ovarian fluid proteome variation associates with sperm swimming speed in an externally fertilizing fish.Journal of evolutionary biology · 2020Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Interactions among eggs and sperm are often assumed to generate intraspecific variation in reproductive fitness, but the specific gamete-level mechanisms underlying competitive fertilization success remain elusive in most species. Sperm chemotaxis-the attraction of sperm by egg-derived chemicals-is a ubiquitous form of gamete signaling, occurring throughout the animal and plant kingdoms. The chemical cues released by eggs are known to act at the interspecific level (e.g., facilitating species recognition), but recent studies have suggested that they could have roles at the intraspecific level by moderating sperm competition. Here, we exploit the experimental tractability of a broadcast spawning marine invertebrate to test this putative mechanism of gamete-level sexual selection. We use a fluorescently labeled mitochondrial dye in mussels to track the real-time success of sperm as they compete to fertilize eggs, and provide the first direct evidence in any species that competitive fertilization success is moderated by differential sperm chemotaxis. Furthermore, our data are consistent with the idea that egg chemoattractants selectively attract ejaculates from genetically compatible males, based on relationships inferred from both nuclear and mitochondrial genetic markers. These findings for a species that exhibits the ancestral reproductive strategy of broadcast spawning have important implications for the numerous species that also rely on egg chemoattractants to attract sperm, including humans, and have potentially important implications for our understanding of the evolutionary cascade of sexual selection.
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