Evidence map›Paper›PMID 30986247›Full record

ArticlePLoS pathogens2019

RNA recombination at Chikungunya virus 3'UTR as an evolutionary mechanism that provides adaptability.

Claudia V Filomatori, Eugenia S Bardossy, Fernando Merwaiss, Yasutsugu Suzuki, Annabelle Henrion, María Carla Saleh, Diego E Alvarez

Abstract read
In one paragraph

Article in PLoS pathogens, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–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

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Chikungunya fever in Africa: a systematic review.Pathogens and global health · 2020
    Pooled it
  2. Molecular Cloning and Reverse Genetics.Methods in molecular biology (Clifton, N.J.) · 2027
    Article
  3. Overview of Chikungunya Virus Epidemiology, Biology, and Pathogenesis.Methods in molecular biology (Clifton, N.J.) · 2027
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Safety concern of recombination between self-amplifying mRNA vaccines and viruses is mitigated in vivo.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
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  18. Article
  19. Recombination in Positive-Strand RNA Viruses.Frontiers in microbiology · 2022
    Review
  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

7 authors.

Claudia V FilomatoriInstituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina.ORCID 0000-0002-0728-5227
Eugenia S BardossyInstituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina.
Fernando MerwaissInstituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina.
Yasutsugu SuzukiInstitut Pasteur, Viruses and RNA Interference Unit, Centre National de la Recherche Scientifique UMR 3569, Paris, France.ORCID 0000-0002-8202-3032
Annabelle HenrionInstitut Pasteur, Viruses and RNA Interference Unit, Centre National de la Recherche Scientifique UMR 3569, Paris, France.
María Carla SalehInstitut Pasteur, Viruses and RNA Interference Unit, Centre National de la Recherche Scientifique UMR 3569, Paris, France.ORCID 0000-0001-8593-4117
Diego E AlvarezInstituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina.ORCID 0000-0002-4449-9670

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The potential of RNA viruses to adapt to new environments relies on their ability to introduce changes in their genomes, which has resulted in the recent expansion of re-emergent viruses. Chikungunya virus is an important human pathogen transmitted by mosquitoes that, after 60 years of exclusive circulation in Asia and Africa, has rapidly spread in Europe and the Americas. Here, we examined the evolution of CHIKV in different hosts and uncovered host-specific requirements of the CHIKV 3'UTR. Sequence repeats are conserved at the CHIKV 3'UTR but vary in copy number among viral lineages. We found that these blocks of repeated sequences favor RNA recombination processes through copy-choice mechanism that acts concertedly with viral selection, determining the emergence of new viral variants. Functional analyses using a panel of mutant viruses indicated that opposite selective pressures in mosquito and mammalian cells impose a fitness cost during transmission that is alleviated by recombination guided by sequence repeats. Indeed, drastic changes in the frequency of viral variants with different numbers of repeats were detected during host switch. We propose that RNA recombination accelerates CHIKV adaptability, allowing the virus to overcome genetic bottlenecks within the mosquito host. These studies highlight the role of 3'UTR plasticity on CHIKV evolution, providing a new paradigm to explain the significance of sequence repetitions.

Indexed as

Recombination, Genetic3' Untranslated RegionsAedesAnimalsBase SequenceCells, CulturedChikungunya FeverChikungunya virusEvolution, MolecularFibroblastsHumansRepetitive Sequences, Nucleic AcidRNARNA, ViralVirus Replication3' Untranslated RegionsRNARNA, recombinantRNA, Viral

Identifiers

PMID30986247
PMCPMC6502353

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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.