ArticleBiology letters2014
Male sperm storage compromises sperm motility in guppies.
Article in Biology letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 29 citations in OpenAlex.
- Article
- Sperm handling and management in the teleost model fish Japanese medaka (Oryzias latipes).Scientific reports · 2024Article
- Male sperm storage impairs sperm quality in the zebrafish.Scientific reports · 2021Article
- Quantifying the costs of pre- and postcopulatory traits for males: Evidence that costs of ejaculation are minor relative to mating effort.Evolution letters · 2021Article
- Sexual selection and ageing: interplay between pre- and post-copulatory traits senescence in the guppy.Proceedings. Biological sciences · 2019Article
- Sperm priming response to perceived mating opportunities is reduced in male guppies with high baseline sperm production.Current zoology · 2018Article
- Sperm storage by males causes changes in sperm phenotype and influences the reproductive fitness of males and their sons.Evolution letters · 2017Article
- Are sexually selected traits affected by a poor environment early in life?BMC evolutionary biology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sperm senescence can have important evolutionary implications due to its deleterious effects on sperm quality and offspring performance. Consequently, it has been argued that polyandry (female multiple mating) may facilitate the selection of younger, and therefore competitively superior, sperm when ejaculates from multiple males compete for fertilization. Surprisingly, however, unequivocal evidence that sperm ageing influences traits that underlie sperm competitiveness is lacking. Here, we used a paired experimental design that compares sperm quality between 'old' and 'young' ejaculates from individual male guppies (Poecilia reticulata). We show that older sperm exhibit significant reductions in sperm velocity compared with younger sperm from the same males. We found no evidence that the brightness of the male's orange (carotenoid) spots, which are thought to signal resistance to oxidative stress (and thus age-related declines in sperm fitness), signals a male's ability to withstand the deleterious effects of sperm ageing. Instead, polyandry may be a more effective strategy for females to minimize the likelihood of being fertilized by aged sperm.
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Registered trials
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