Evidence map›Paper›PMID 27559067›Full record

ArticleProceedings. Biological sciences2016

Sperm morphology, adenosine triphosphate (ATP) concentration and swimming velocity: unexpected relationships in a passerine bird.

Clair Bennison, Nicola Hemmings, Lola Brookes, Jon Slate, Tim Birkhead

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

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  5. Effects ofHuman reproduction open · 2024
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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.

Clair BennisonDepartment of Animal and Plant Sciences, The University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, UK.
Nicola HemmingsDepartment of Animal and Plant Sciences, The University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, UK n.hemmings@sheffield.ac.uk.ORCID 0000-0003-2418-3625
Lola BrookesDepartment of Animal and Plant Sciences, The University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, UK Zoological Society of London, London, UK.
Jon SlateDepartment of Animal and Plant Sciences, The University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, UK.
Tim BirkheadDepartment of Animal and Plant Sciences, The University of Sheffield, Alfred Denny Building, Western Bank, Sheffield, UK.

Funding

Biotechnology and Biological Sciences Research Council BB/I02185X/1
6 · The paper itself

Abstract

The relationship between sperm energetics and sperm function is poorly known, but is central to our understanding of the evolution of sperm traits. The aim of this study was to examine how sperm morphology and ATP content affect sperm swimming velocity in the zebra finch Taeniopygia guttata We exploited the high inter-male variation in this species and created extra experimental power by increasing the number of individuals with very long or short sperm through artificial selection. We found a pronounced quadratic relationship between total sperm length and swimming velocity, with velocity increasing with length up to a point, but declining in the very longest sperm. We also found an unexpected negative association between midpiece length and ATP content: sperm with a short midpiece generally contained the highest concentration of ATP. Low intracellular ATP is therefore unlikely to explain reduced swimming velocity among the very longest sperm (which tend to have a shorter midpiece).

Indexed as

Sperm MotilityAdenosine TriphosphateAnimalsMalePhenotypeSongbirdsSpermatozoaAdenosine Triphosphatepasserine spermsperm competitionsperm energeticssperm motilityzebra finch

Identifiers

PMID27559067
PMCPMC5013805

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Registered trials

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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.