Evidence map›Paper›PMID 25761710›Full record

ArticleProceedings. Biological sciences2015

Expression of parasite genetic variation changes over the course of infection: implications of within-host dynamics for the evolution of virulence.

Melanie Clerc, Dieter Ebert, Matthew D Hall

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
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  5. Can pharmaceutical pollution alter the spread of infectious disease? A case study using fluoxetine.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  6. Infection burdens and virulence under heat stress: ecological and evolutionary considerations.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  7. Out of the 'host' box: extreme off-host conditions alter the infectivity and virulence of a parasitic bacterium.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  8. Article
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  18. Linking sex differences to the evolution of infectious disease life-histories.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  19. 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

3 authors at 2 institutions in 3 countries.

Melanie ClercInstitute of Evolutionary Biology, University of Edinburgh, Ashworth Labs, Charlotte Auerbach Road, Edinburgh EH9 3FL, UK Zoological Institute, University of Basel, Vesalgasse 1, Basel 4051, Switzerland m.clerc@sms.ed.ac.uk.
Dieter EbertZoological Institute, University of Basel, Vesalgasse 1, Basel 4051, Switzerland.
Matthew D HallZoological Institute, University of Basel, Vesalgasse 1, Basel 4051, Switzerland School of Biological Sciences, Monash University, Melbourne 3800, Australia.
University of Basel · CHMonash University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How infectious disease agents interact with their host changes during the course of infection and can alter the expression of disease-related traits. Yet by measuring parasite life-history traits at one or few moments during infection, studies have overlooked the impact of variable parasite growth trajectories on disease evolution. Here we show that infection-age-specific estimates of host and parasite fitness components can reveal new insight into the evolution of parasites. We do so by characterizing the within-host dynamics over an entire infection period for five genotypes of the castrating bacterial parasite Pasteuria ramosa infecting the crustacean Daphnia magna. Our results reveal that genetic variation for parasite-induced gigantism, host castration and parasite spore loads increases with the age of infection. Driving these patterns appears to be variation in how well the parasite maintains control of host reproduction late in the infection process. We discuss the evolutionary consequences of this finding with regard to natural selection acting on different ages of infection and the mechanism underlying the maintenance of castration efficiency. Our results highlight how elucidating within-host dynamics can shed light on the selective forces that shape infection strategies and the evolution of virulence.

Indexed as

Evolution, MolecularGenetic VariationAnimalsDaphniaHost-Pathogen InteractionsPasteuriaDaphniagenetic variationhost–parasite interactionslife historyPasteuria ramosa

Identifiers

PMID25761710
PMCPMC4375866
OpenAlexW1999416683

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.