Evidence map›Paper›PMID 19090620›Full record

ArticlePLoS biology2008

High functional diversity in Mycobacterium tuberculosis driven by genetic drift and human demography.

Ruth Hershberg, Mikhail Lipatov, Peter M Small, Hadar Sheffer, Stefan Niemann, Susanne Homolka, Jared C Roach, Kristin Kremer, Dmitri A Petrov, Marcus W Feldman and 1 more

Abstract read
In one paragraph

Article in PLoS biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 296 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
296citing papers in PubMed, 5 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

296 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Pooled it
  4. Do HLA class II genes protect against pulmonary tuberculosis? A systematic review and meta-analysis.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2016
    Pooled it
  5. Pooled it
  6. Article
  7. Article
  8. Article
  9. Review
  10. Molecular Epidemiology ofMicroorganisms · 2025
    Review
  11. TheeLife · 2025
    Article
  12. Review
  13. Loss of theScience advances · 2025
    Article
  14. Article
  15. Article
  16. Article
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  19. Review
  20. Article

236 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

11 authors.

Ruth HershbergDepartment of Biology, Stanford University, Stanford, California, USA.
Mikhail Lipatov
Peter M Small
Hadar Sheffer
Stefan Niemann
Susanne Homolka
Jared C Roach
Kristin Kremer
Dmitri A Petrov
Marcus W Feldman
Sebastien Gagneux

Funding

POPULATION-BASED MOLECULAR EPIDEMIOLOGY OF TUBERCULOSISR01AI034238 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI HOPEWELL, PHILIP C · 1993 to 2010
$9.3M
POPULATION GENETICS THEORYR01GM028016 · NIGMS · STANFORD UNIVERSITY · PI FELDMAN, MARCUS W · 1985 to 2010
$2.5M
Quantifying Protein Predictors of Macrophage ResponsesK08AI056092 · NIAID · SEATTLE CHILDREN'S HOSPITAL · PI ROACH, JARED C · 2003 to 2007
$613k
Medical Research Council MC_U117588500NIAID NIH HHS 5K08AI056092NIAID NIH HHS AI34238NIAID NIH HHS K08 AI056092NIAID NIH HHS R01 AI034238NIGMS NIH HHS GM28016NIGMS NIH HHS R01 GM028016PHS HHS HHSN266200700022CWellcome Trust
6 · The paper itself

Abstract

Mycobacterium tuberculosis infects one third of the human world population and kills someone every 15 seconds. For more than a century, scientists and clinicians have been distinguishing between the human- and animal-adapted members of the M. tuberculosis complex (MTBC). However, all human-adapted strains of MTBC have traditionally been considered to be essentially identical. We surveyed sequence diversity within a global collection of strains belonging to MTBC using seven megabase pairs of DNA sequence data. We show that the members of MTBC affecting humans are more genetically diverse than generally assumed, and that this diversity can be linked to human demographic and migratory events. We further demonstrate that these organisms are under extremely reduced purifying selection and that, as a result of increased genetic drift, much of this genetic diversity is likely to have functional consequences. Our findings suggest that the current increases in human population, urbanization, and global travel, combined with the population genetic characteristics of M. tuberculosis described here, could contribute to the emergence and spread of drug-resistant tuberculosis.

Indexed as

Genetic DriftBase SequenceDatabases, GeneticDemographyDrug Resistance, Multiple, BacterialEmigration and ImmigrationGenome, BacterialHumansMycobacterium tuberculosisPhylogenyPolymorphism, Single NucleotideTuberculosis, Multidrug-Resistant

Identifiers

PMID19090620
PMCPMC2602723

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.