ArticleProceedings. Biological sciences2013
Delineating the roles of males and females in sperm competition.
Article in Proceedings. Biological sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Patterns of sperm swimming behaviour depend on male mating tactic and spawning environment in chinook salmon.Scientific reports · 2024Article
- Sperm performance in the race for fertilization, the influence of female reproductive fluid.Royal Society open science · 2024Article
- Female reproductive fluid and male seminal fluid: a non-gametic conflict for post-mating control.Biology letters · 2023Article
- Can cryptic female choice prevent invasive hybridization in external fertilizing fish?Evolutionary applications · 2023Article
- Frequency-dependent viscosity of salmon ovarian fluid has biophysical implications for sperm-egg interactions.The Journal of experimental biology · 2023Article
- A test for plasticity in sperm motility activation in response to osmotic environment in an anuran amphibian.Ecology and evolution · 2022Article
- The role of female reproductive fluid in sperm competition.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
- Penis size and sperm quality, are all bats grey in the dark?Current zoology · 2019Article
- Bolder guppies do not have more mating partners, yet sire more offspring.BMC evolutionary biology · 2019Article
- No support for cryptic choice by ovarian fluid in an external fertilizer.Ecology and evolution · 2018Article
- Gamete-mediated mate choice: towards a more inclusive view of sexual selection.Proceedings. Biological sciences · 2018Review
- Nuclear arms races: Experimental evolution for mating success in the mushroom-forming fungus Schizophyllum commune.PloS one · 2018Article
- Egg chemoattractants moderate intraspecific sperm competition.Evolution letters · 2017Article
- Article
- Male-female relatedness at specific SNP-linkage groups influences cryptic female choice in Chinook salmon (Proceedings. Biological sciences · 2017Article
- Article
- Ocean acidification changes the male fitness landscape.Scientific reports · 2016Article
- Ovarian fluid allows directional cryptic female choice despite external fertilization.Nature communications · 2016Article
- Cryptic female choice enhances fertilization success and embryo survival in chinook salmon.Proceedings. Biological sciences · 2016Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Disentangling the relative roles of males, females and their interactive effects on competitive fertilization success remains a challenge in sperm competition. In this study, we apply a novel experimental framework to an ideally suited externally fertilizing model system in order to delineate these roles. We focus on the chinook salmon, Oncorhynchus tshawytscha, a species in which ovarian fluid (OF) has been implicated as a potential arbiter of cryptic female choice for genetically compatible mates. We evaluated this predicted sexually selected function of OF using a series of factorial competitive fertilization trials. Our design involved a series of 10 factorial crosses, each involving two ‘focal’ rival males whose sperm competed against those from a single ‘standardized’ (non-focal) rival for a genetically uniform set of eggs in the presence of OF from two focal females. This design enabled us to attribute variation in competitive fertilization success among focal males, females (OF) and their interacting effects, while controlling for variation attributable to differences in the sperm competitive ability of rival males, and male-by-female genotypic interactions. Using this experimental framework, we found that variation in sperm competitiveness could be attributed exclusively to differences in the sperm competitive ability of focal males, a conclusion supported by subsequent analyses revealing that variation in sperm swimming velocity predicts paternity success. Together, these findings provide evidence that variation in paternity success can be attributed to intrinsic differences in the sperm competitive ability of rival males, and reveal that sperm swimming velocity is a key target of sexual selection.
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