Evidence map›Paper›PMID 22389744›Full record

ArticlePLoS neglected tropical diseases2012

The genome of Mycobacterium africanum West African 2 reveals a lineage-specific locus and genome erosion common to the M. tuberculosis complex.

Stephen D Bentley, Iñaki Comas, Josephine M Bryant, Danielle Walker, Noel H Smith, Simon R Harris, Scott Thurston, Sebastien Gagneux, Jonathan Wood, Martin Antonio and 5 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

43 citing papers in PubMed, 73 citations in OpenAlex.

  1. Trial
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  3. Diversification of gene content in theMicrobiology spectrum · 2024
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  5. The rate and role of pseudogenes of theMicrobial genomics · 2022
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  8. Pan and Core Genome Analysis of 183Antibiotics (Basel, Switzerland) · 2021
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  10. Review
  11. Article
  12. Association ofThe American journal of tropical medicine and hygiene · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. The Bioinformatics Analysis of Comparative Genomics ofFrontiers in cellular and infection microbiology · 2017
    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 at 5 institutions in 5 countries.

Stephen D BentleyWellcome Trust Genome Campus, Wellcome Trust Sanger Institute, Hinxton, UK.
Iñaki Comas
Josephine M Bryant
Danielle Walker
Noel H Smith
Simon R Harris
Scott Thurston
Sebastien Gagneux
Jonathan Wood
Martin Antonio
Michael A Quail
Florian Gehre
Richard A Adegbola
Julian Parkhill
Bouke C de Jong
Wellcome Sanger Institute · GBMRC Unit the Gambia · GMNew York University · USUniversity of Basel · CHVeterinary Medicines Directorate · GB

Funding

Medical Research Council MC_U190071468Medical Research Council MC_U190074190Medical Research Council MC_U190081982Medical Research Council MC_U190081991Medical Research Council MC_U190085850Medical Research Council MC_UP_A900_1122Wellcome Trust
6 · The paper itself

Abstract

backgroundM. africanum West African 2 constitutes an ancient lineage of the M. tuberculosis complex that commonly causes human tuberculosis in West Africa and has an attenuated phenotype relative to M. tuberculosis. METHODOLOGY/PRINCIPAL

findingsIn search of candidate genes underlying these differences, the genome of M. africanum West African 2 was sequenced using classical capillary sequencing techniques. Our findings reveal a unique sequence, RD900, that was independently lost during the evolution of two important lineages within the complex: the "modern" M. tuberculosis group and the lineage leading to M. bovis. Closely related to M. bovis and other animal strains within the M. tuberculosis complex, M. africanum West African 2 shares an abundance of pseudogenes with M. bovis but also with M. africanum West African clade 1. Comparison with other strains of the M. tuberculosis complex revealed pseudogenes events in all the known lineages pointing toward ongoing genome erosion likely due to increased genetic drift and relaxed selection linked to serial transmission-bottlenecks and an intracellular lifestyle. CONCLUSIONS/SIGNIFICANCE: The genomic differences identified between M. africanum West African 2 and the other strains of the Mycobacterium tuberculosis complex may explain its attenuated phenotype, and pave the way for targeted experiments to elucidate the phenotypic characteristic of M. africanum. Moreover, availability of the whole genome data allows for verification of conservation of targets used for the next generation of diagnostics and vaccines, in order to ensure similar efficacy in West Africa.

Indexed as

Genome, BacterialAdultAfrica, WesternAnimalsDNA, BacterialEvolution, MolecularGenes, BacterialHumansMaleMolecular Sequence DataMycobacteriumPseudogenesSequence Analysis, DNATuberculosisDNA, Bacterial

Identifiers

PMID22389744
PMCPMC3289620
OpenAlexW2086639069

What OpenQuestion holds

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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.