Evidence map›Paper›PMID 25898893›Full record

ArticleBMC genomics2015

Virulence related sequences; insights provided by comparative genomics of Streptococcus uberis of differing virulence.

Maqsud Hossain, Sharon A Egan, Tracey Coffey, Philip N Ward, Ray Wilson, James A Leigh, Richard D Emes

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2015. 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
5.8field-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

27 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Diversity ofFrontiers in veterinary science · 2023
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  11. Multilocus Sequence Genotype Heterogeneity inAnimals : an open access journal from MDPI · 2022
    Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Genotyping and Antimicrobial Susceptibility Profiling ofAntibiotics (Basel, Switzerland) · 2021
    Article
  17. Article
  18. Article
  19. PCR-Based Direct Detection ofVeterinary medicine international · 2020
    Article
  20. Molecular variability ofCanadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2019
    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 at 3 institutions in 1 country.

Maqsud HossainSchool of Veterinary Medicine and Science, University of Nottingham, Leicestershire, LE12 5RD, Sutton Bonington, UK. svxmh@nottingham.ac.uk.
Sharon A EganSchool of Veterinary Medicine and Science, University of Nottingham, Leicestershire, LE12 5RD, Sutton Bonington, UK. sharon.egan@nottingham.ac.uk.
Tracey CoffeySchool of Veterinary Medicine and Science, University of Nottingham, Leicestershire, LE12 5RD, Sutton Bonington, UK. tracey.coffey@nottingham.ac.uk.
Philip N WardSir William Dunn School of Pathology, The University of Oxford, Oxford, UK. phil.ward@path.ox.ac.uk.
Ray WilsonDeepSeq, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, UK. ray.wilson@nottingham.ac.uk.
James A LeighSchool of Veterinary Medicine and Science, University of Nottingham, Leicestershire, LE12 5RD, Sutton Bonington, UK. james.leigh@nottingham.ac.uk.
Richard D EmesSchool of Veterinary Medicine and Science, University of Nottingham, Leicestershire, LE12 5RD, Sutton Bonington, UK. richard.emes@nottingham.ac.uk.
University of Nottingham · GBQueen's Medical Centre · GBUniversity of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E018114/1Biotechnology and Biological Sciences Research Council BB/E018173/1Biotechnology and Biological Sciences Research Council BB/E018173/2Biotechnology and Biological Sciences Research Council E0181141Biotechnology and Biological Sciences Research Council E0181732
6 · The paper itself

Abstract

backgroundStreptococcus uberis, a Gram-positive, catalase-negative member of the family Streptococcaceae is an important environmental pathogen responsible for a significant proportion of subclinical and clinical bovine intramammary infections. Currently, the genome of only a single reference strain (0140J) has been described. Here we present a comparative analysis of complete draft genome sequences of an additional twelve S. uberis strains.

resultsPan and core genome analysis revealed the core genome common to all strains to be 1,550 genes in 1,509 orthologous clusters, complemented by 115-246 accessory genes present in one or more S. uberis strains but absent in the reference strain 0140J. Most of the previously predicted virulent genes were present in the core genome of all 13 strains but gene gain/loss was observed between the isolates in CDS associated with clustered regularly interspaced short palindromic repeats (CRISPRs), prophage and bacteriocin production. Experimental challenge experiments confirmed strain EF20 as non-virulent; only able to infect in a transient manner that did not result in clinical mastitis. Comparison of the genome sequence of EF20 with the validated virulent strain 0140J identified genes associated with virulence, however these did not relate clearly with clinical/non-clinical status of infection.

conclusionThe gain/loss of mobile genetic elements such as CRISPRs and prophage are a potential driving force for evolutionary change. This first "whole-genome" comparison of strains isolated from clinical vs non-clinical intramammary infections including the type virulent vs non-virulent strains did not identify simple gene gain/loss rules that readily explain, or be confidently associated with, differences in virulence. This suggests that a more complex dynamic determines infection potential and clinical outcome not simply gene content.

Indexed as

Genome, BacterialAnimalsBacteriocinsBase SequenceCattleClustered Regularly Interspaced Short Palindromic RepeatsComparative Genomic HybridizationFemaleMastitis, BovineMilkMolecular Sequence DataPhylogenyPolymorphism, Single NucleotideSequence AlignmentSequence Analysis, DNAStreptococcusBacteriocins

Identifiers

PMID25898893
PMCPMC4427978
OpenAlexW2068681456

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.