Evidence map›Paper›PMID 34217365›Full record

ArticleMicrobiome2021

Temporal patterns in Ixodes ricinus microbial communities: an insight into tick-borne microbe interactions.

E Lejal, J Chiquet, J Aubert, S Robin, A Estrada-Peña, O Rue, C Midoux, M Mariadassou, X Bailly, A Cougoul and 5 more

Abstract readVideo-Audio Media
In one paragraph

Article in Microbiome, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing 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

54 citing papers in PubMed.

  1. Article
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  3. bioRxiv : the preprint server for biology · 2026
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  5. Review
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  7. Spatiotemporal and tissue-specific dynamics of bacterial communities in adult femaleFrontiers in cellular and infection microbiology · 2026
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  8. Article
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  17. Differential Impact of Simultaneous or Sequential Coinfections WithInternational journal of microbiology · 2025
    Article
  18. Microbiome ofInsects · 2024
    Article
  19. 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

15 authors.

E LejalUMR BIPAR, Animal Health Laboratory, INRAE, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.
J ChiquetUniversité Paris-Saclay, AgroParisTech, INRAE, UMR MIA-Paris, 75005, Paris, France.
J AubertUniversité Paris-Saclay, AgroParisTech, INRAE, UMR MIA-Paris, 75005, Paris, France.
S RobinUniversité Paris-Saclay, AgroParisTech, INRAE, UMR MIA-Paris, 75005, Paris, France.
A Estrada-PeñaFaculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain.
O RueINRAE, MaIAGE, Université Paris-Saclay, Jouy-en-Josas, France.
C MidouxINRAE, MaIAGE, Université Paris-Saclay, Jouy-en-Josas, France.
M MariadassouINRAE, MaIAGE, Université Paris-Saclay, Jouy-en-Josas, France.
X BaillyUniversité Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, 63122, Saint Genes Champanelle, France.
A CougoulUniversité Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, 63122, Saint Genes Champanelle, France.
P GasquiUniversité Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, 63122, Saint Genes Champanelle, France.
J F CossonUMR BIPAR, Animal Health Laboratory, INRAE, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.
K Chalvet-MonfrayUniversité Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, 63122, Saint Genes Champanelle, France.
M Vayssier-TaussatINRAE, Animal Health Department, Nouzilly, France.
T PolletUMR ASTRE, CIRAD, INRAE, Campus de Baillarguet, Montpellier, France. thomas.pollet@inrae.fr.ORCID 0000-0002-3427-7695

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTicks transmit pathogens of medical and veterinary importance and are an increasing threat to human and animal health. Assessing disease risk and developing new control strategies requires identifying members of the tick-borne microbiota as well as their temporal dynamics and interactions.

methodsUsing high-throughput sequencing, we studied the Ixodes ricinus microbiota and its temporal dynamics. 371 nymphs were monthly collected during three consecutive years in a peri-urban forest. After a Poisson lognormal model was adjusted to our data set, a principal component analysis, sparse network reconstruction, and differential analysis allowed us to assess seasonal and monthly variability of I. ricinus microbiota and interactions within this community.

resultsAround 75% of the detected sequences belonged to five genera known to be maternally inherited bacteria in arthropods and to potentially circulate in ticks: Candidatus Midichloria, Rickettsia, Spiroplasma, Arsenophonus and Wolbachia. The structure of the I. ricinus microbiota varied over time with interannual recurrence and seemed to be mainly driven by OTUs commonly found in the environment. Total network analysis revealed a majority of positive partial correlations. We identified strong relationships between OTUs belonging to Wolbachia and Arsenophonus, evidence for the presence of the parasitoid wasp Ixodiphagus hookeri in ticks. Other associations were observed between the tick symbiont Candidatus Midichloria and pathogens belonging to Rickettsia. Finally, more specific network analyses were performed on TBP-infected samples and suggested that the presence of pathogens belonging to the genera Borrelia, Anaplasma and Rickettsia may disrupt microbial interactions in I. ricinus.

conclusionsWe identified the I. ricinus microbiota and documented marked shifts in tick microbiota dynamics over time. Statistically, we showed strong relationships between the presence of specific pathogens and the structure of the I. ricinus microbiota. We detected close links between some tick symbionts and the potential presence of either pathogenic Rickettsia or a parasitoid in ticks. These new findings pave the way for the development of new strategies for the control of ticks and tick-borne diseases. Video abstract.

Indexed as

BorreliaIxodesMicrobiotaRickettsiaAnimalsHumansMicrobial Interactions

Identifiers

PMID34217365
PMCPMC8254910

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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.