Evidence map›Paper›PMID 28123091›Full record

ArticleProceedings. Biological sciences2017

Trade-off between carotenoid-based sexual ornamentation and sperm resistance to oxidative challenge.

Oldřich Tomášek, Jana Albrechtová, Martina Němcová, Pavlína Opatová, Tomáš Albrecht

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
6.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
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  7. Review
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  9. Article
  10. The role of oxidative stress in postcopulatory selection.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  11. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Oldřich TomášekInstitute of Vertebrate Biology, The Czech Academy of Sciences, v.v.i., Květná 8, Brno 60365, Czech Republic oltmsk@gmail.com.ORCID 0000-0002-2657-5916
Jana AlbrechtováInstitute of Vertebrate Biology, The Czech Academy of Sciences, v.v.i., Květná 8, Brno 60365, Czech Republic.
Martina NěmcováFaculty of Science, Department of Zoology, Charles University, Viničná 7, Prague 2 12844, Czech Republic.
Pavlína OpatováInstitute of Vertebrate Biology, The Czech Academy of Sciences, v.v.i., Květná 8, Brno 60365, Czech Republic.ORCID 0000-0003-3847-4220
Tomáš AlbrechtInstitute of Vertebrate Biology, The Czech Academy of Sciences, v.v.i., Květná 8, Brno 60365, Czech Republic albrecht@ivb.cz.ORCID 0000-0002-9213-0034
Charles University · CZCzech Academy of Sciences, Institute of Vertebrate Biology · CZMasaryk University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been hypothesized that carotenoid-based sexual ornamentation signals male fertility and sperm competitive ability as both ornamentation and sperm traits may be co-affected by oxidative stress, resulting in positive covariation (the 'redox-based phenotype-linked fertility hypothesis'; redox-based PLFH). On the other hand, the 'sperm competition theory' (SCT) predicts a trade-off between precopulatory and postcopulatory traits. Here, we manipulate oxidative status (using diquat dibromide) and carotenoid availability in adult zebra finch (Taeniopygia guttata) males in order to test whether carotenoid-based beak ornamentation signals, or is traded off against, sperm resistance to oxidative challenge. Initial beak colouration, but not its change during the experiment, was associated with effect of oxidative challenge on sperm velocity, such that more intense colouration predicted an increase in sperm velocity under control conditions but a decline under oxidative challenge. This suggests a long-term trade-off between ornament expression and sperm resistance to oxidative challenge. Shortening of the sperm midpiece following oxidative challenge further suggests that redox homeostasis may constrain sperm morphometry. Carotenoid supplementation resulted in fewer sperm abnormalities but had no effect on other sperm traits. Overall, our data challenge the redox-based PLFH, partially support the SCT and highlight the importance of carotenoids for normal sperm morphology.

Indexed as

Oxidative StressPigmentationAnimalsBeakCarotenoidsMaleSongbirdsSpermatozoaCarotenoidsejaculate qualityluteinphenotype-linked fertility hypothesissexual selectionsperm competition theoryzeaxanthin

Identifiers

PMID28123091
PMCPMC5310042
OpenAlexW2580286366

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.