Evidence map›Paper›PMID 22152674›Full record

ArticleParasites & vectors2011

Parasites of vectors--Ixodiphagus hookeri and its Wolbachia symbionts in ticks in The Netherlands.

Ellen Tijsse-Klasen, Marieta Braks, Ernst-Jan Scholte, Hein Sprong

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 59 citations in OpenAlex.

  1. First Molecular Evidence ofPathogens (Basel, Switzerland) · 2025
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  2. Pathogens (Basel, Switzerland) · 2024
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  3. Microbiology spectrum · 2023
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  4. The Role of Parasitoid Wasps,Pathogens (Basel, Switzerland) · 2023
    Review
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  8. A highly divergentProceedings. Biological sciences · 2022
    Article
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  10. What do we know about the microbiome ofFrontiers in cellular and infection microbiology · 2022
    Review
  11. Review
  12. Article
  13. Article
  14. Bacterial Pathogens and Symbionts Harboured byPathogens (Basel, Switzerland) · 2021
    Article
  15. Frontiers in veterinary science · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. EndosymbioticProceedings. Biological sciences · 2020
    Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Ellen Tijsse-KlasenLaboratory for Zoonoses and Environmental Microbiology, National Institute for Public Health and Environment (RIVM), Bilthoven, The Netherlands.
Marieta Braks
Ernst-Jan Scholte
Hein Sprong
National Institute for Public Health and the Environment · NLMinistry of Economic Affairs and Climate Policy · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIxodiphagus hookeri is a parasitic wasp of ixodid ticks around the world. It has been studied as a potential bio-control agent for several tick species. We suspected that the presence of Wolbachia infected I. hookeri eggs in ticks is responsible for incidental detection of Wolbachia DNA in tick samples.

methodsThe 28S rRNA and 16S rRNA genes of a specimen of I. hookeri was amplified and sequenced. PCR on part of the 28S rRNA gene was used to detect parasitic wasp DNA in 349 questing Ixodes ricinus ticks from various sampling sites. Furthermore, the wsp gene of Wolbachia was sequenced from the I. hookeri specimen and a subset of ticks was tested using this marker.

resultsSeveral sequences from tick specimens were identical to the Wolbachia sequence of the I. hookeri specimen. Ixodiphagus hookeri was detected in 9.5% of all tested ticks, varying between 4% and 26% depending on geographic location. Ten out of eleven sampling sites throughout the Netherlands were positive for I. hookeri. Eighty-seven percent of I. hookeri-positive but only 1.6% of I. hookeri-negative ticks were Wolbachia positive. Detection of I. hookeri DNA was strongly associated with the detection of Wolbachia in ticks.

conclusionThis is the first reported case of I. hookeri in the Netherlands. Furthermore I. hookeri harbours Wolbachia species and is broadly distributed in the Netherlands. While detection of Wolbachia DNA in ticks might often be due to parasitism with this wasp, other sources of Wolbachia DNA in ticks might exist as well.

Indexed as

SymbiosisAnimalsBacterial Outer Membrane ProteinsGenes, rRNAHymenopteraIxodesNetherlandsRNA, Ribosomal, 28SSequence Analysis, DNAWolbachiaBacterial Outer Membrane ProteinsRNA, Ribosomal, 28SWsp protein, Wolbachia

Identifiers

PMID22152674
PMCPMC3248373
OpenAlexW2169047083

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.