Evidence map›Paper›PMID 19346311›Full record

ArticleJournal of bacteriology2009

Analysis of ten Brucella genomes reveals evidence for horizontal gene transfer despite a preferred intracellular lifestyle.

Alice R Wattam, Kelly P Williams, Eric E Snyder, Nalvo F Almeida, Maulik Shukla, A W Dickerman, O R Crasta, R Kenyon, J Lu, J M Shallom and 12 more

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 114 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Evolution and phylogenetic characteristics of the firstFrontiers in cellular and infection microbiology · 2025
    Article
  5. Review
  6. [Zoonotic potential of brucellosis in marine mammals].Medecine tropicale et sante internationale · 2024
    Review
  7. Article
  8. Seroprevalence ofMicroorganisms · 2023
    Article
  9. Global phylogenomic diversity ofFrontiers in microbiology · 2023
    Article
  10. Isolation ofFrontiers in microbiology · 2023
    Article
  11. Article
  12. Article
  13. The Retrospective on AtypicalMicroorganisms · 2022
    Review
  14. Review
  15. Review
  16. Uncovering the Hidden Credentials ofMicrobiology and molecular biology reviews : MMBR · 2021
    Review
  17. When the Going Gets Rough: The Significance ofFrontiers in microbiology · 2021
    Review
  18. Article
  19. International journal of molecular sciences · 2020
    Review
  20. Article

10 more citing papers are in PubMed but not listed here.

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

22 authors at 5 institutions in 2 countries.

Alice R WattamVirginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA. wattam@vbi.vt.edu
Kelly P Williams
Eric E Snyder
Nalvo F Almeida
Maulik Shukla
A W Dickerman
O R Crasta
R Kenyon
J Lu
J M Shallom
H Yoo
T A Ficht
R M Tsolis
C Munk
R Tapia
C S Han
J C Detter
D Bruce
T S Brettin
Bruno W Sobral
Stephen M Boyle
João C Setubal
Virginia Tech · USLos Alamos National Laboratory · USUniversidade Federal de Mato Grosso do Sul · BRUniversity of California, Davis · USVirginia–Maryland College of Veterinary Medicine · US

Funding

PHS HHS HHSN266200400035C
6 · The paper itself

Abstract

The facultative intracellular bacterial pathogen Brucella infects a wide range of warm-blooded land and marine vertebrates and causes brucellosis. Currently, there are nine recognized Brucella species based on host preferences and phenotypic differences. The availability of 10 different genomes consisting of two chromosomes and representing six of the species allowed for a detailed comparison among themselves and relatives in the order Rhizobiales. Phylogenomic analysis of ortholog families shows limited divergence but distinct radiations, producing four clades as follows: Brucella abortus-Brucella melitensis, Brucella suis-Brucella canis, Brucella ovis, and Brucella ceti. In addition, Brucella phylogeny does not appear to reflect the phylogeny of Brucella species' preferred hosts. About 4.6% of protein-coding genes seem to be pseudogenes, which is a relatively large fraction. Only B. suis 1330 appears to have an intact beta-ketoadipate pathway, responsible for utilization of plant-derived compounds. In contrast, this pathway in the other species is highly pseudogenized and consistent with the "domino theory" of gene death. There are distinct shared anomalous regions (SARs) found in both chromosomes as the result of horizontal gene transfer unique to Brucella and not shared with its closest relative Ochrobactrum, a soil bacterium, suggesting their acquisition occurred in spite of a predominantly intracellular lifestyle. In particular, SAR 2-5 appears to have been acquired by Brucella after it became intracellular. The SARs contain many genes, including those involved in O-polysaccharide synthesis and type IV secretion, which if mutated or absent significantly affect the ability of Brucella to survive intracellularly in the infected host.

Indexed as

AdipatesBrucellaChromosomes, BacterialComputational BiologyGene Transfer, HorizontalGenome, BacterialModels, GeneticPhylogenyPseudogenesSignal Transduction3-oxoadipic acidAdipates

Identifiers

PMID19346311
PMCPMC2681906
OpenAlexW2100702435

What OpenQuestion holds

Textmetadata
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.