Evidence map›Paper›PMID 23982073›Full record

ArticlemBio2013

Genome and transcriptome adaptation accompanying emergence of the definitive type 2 host-restricted Salmonella enterica serovar Typhimurium pathovar.

Robert A Kingsley, Sally Kay, Thomas Connor, Lars Barquist, Leanne Sait, Kathryn E Holt, Karthi Sivaraman, Thomas Wileman, David Goulding, Simon Clare and 10 more

Open access · goldAbstract read
In one paragraph

Article in mBio, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
10.9field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Article
  3. Host adaptation inApplied and environmental microbiology · 2026
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  5. Comparative Genomic Profiles ofMicroorganisms · 2025
    Article
  6. Article
  7. Article
  8. Animals : an open access journal from MDPI · 2024
    Review
  9. Article
  10. Review
  11. Antibiotics (Basel, Switzerland) · 2023
    Review
  12. Article
  13. Phytochemicals: potential alternative strategy to fightFrontiers in veterinary science · 2023
    Review
  14. International journal of molecular sciences · 2022
    Review
  15. Article
  16. Article
  17. Article
  18. What WGS Reveals aboutMicroorganisms · 2021
    Article
  19. Genomic Characterization ofPathogens (Basel, Switzerland) · 2021
    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

20 authors at 6 institutions in 3 countries.

Robert A KingsleyThe Wellcome Trust Sanger Institute, the Wellcome Trust Genome Campus, Hinxton, Cambridge, United Kingdom. rak@sanger.ac.uk
Sally Kay
Thomas Connor
Lars Barquist
Leanne Sait
Kathryn E Holt
Karthi Sivaraman
Thomas Wileman
David Goulding
Simon Clare
Christine Hale
Aswin Seshasayee
Simon Harris
Nicholas R Thomson
Paul Gardner
Wolfgang Rabsch
Paul Wigley
Tom Humphrey
Julian Parkhill
Gordon Dougan
Wellcome Sanger Institute · GBUniversity of Liverpool · GBWellcome Trust · GBRobert Koch Institute · DEUniversity of Bristol · GBUniversity of Canterbury · NZ

Funding

Wellcome Trust
6 · The paper itself

Abstract

Salmonella enterica serovar Typhimurium definitive type 2 (DT2) is host restricted to Columba livia (rock or feral pigeon) but is also closely related to S. Typhimurium isolates that circulate in livestock and cause a zoonosis characterized by gastroenteritis in humans. DT2 isolates formed a distinct phylogenetic cluster within S. Typhimurium based on whole-genome-sequence polymorphisms. Comparative genome analysis of DT2 94-213 and S. Typhimurium SL1344, DT104, and D23580 identified few differences in gene content with the exception of variations within prophages. However, DT2 94-213 harbored 22 pseudogenes that were intact in other closely related S. Typhimurium strains. We report a novel in silico approach to identify single amino acid substitutions in proteins that have a high probability of a functional impact. One polymorphism identified using this method, a single-residue deletion in the Tar protein, abrogated chemotaxis to aspartate in vitro. DT2 94-213 also exhibited an altered transcriptional profile in response to culture at 42°C compared to that of SL1344. Such differentially regulated genes included a number involved in flagellum biosynthesis and motility. IMPORTANCE Whereas Salmonella enterica serovar Typhimurium can infect a wide range of animal species, some variants within this serovar exhibit a more limited host range and altered disease potential. Phylogenetic analysis based on whole-genome sequences can identify lineages associated with specific virulence traits, including host adaptation. This study represents one of the first to link pathogen-specific genetic signatures, including coding capacity, genome degradation, and transcriptional responses to host adaptation within a Salmonella serovar. We performed comparative genome analysis of reference and pigeon-adapted definitive type 2 (DT2) S. Typhimurium isolates alongside phenotypic and transcriptome analyses, to identify genetic signatures linked to host adaptation within the DT2 lineage.

Indexed as

Genome, BacterialHost SpecificityTranscriptomeAdaptation, PhysiologicalAnimalsBacterial ProteinsColumbidaeHumansMiceMice, Inbred C57BLMolecular Sequence DataPhylogenySalmonella InfectionsSalmonella Infections, AnimalSalmonella typhimuriumVirulenceBacterial Proteins

Identifiers

PMID23982073
PMCPMC3760250
OpenAlexW2124920133

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.