Evidence map›Paper›PMID 16973745›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

Genome reduction in Leptospira borgpetersenii reflects limited transmission potential.

Dieter M Bulach, Richard L Zuerner, Peter Wilson, Torsten Seemann, Annette McGrath, Paul A Cullen, John Davis, Matthew Johnson, Elizabeth Kuczek, David P Alt and 5 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
185citing papers in PubMed, 1 pooled it
11.8field-weighted citation impact, top 1% 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

185 citing papers in PubMed, 1 synthesis or guideline pooled it, 360 citations in OpenAlex.

  1. Pooled it
  2. Article
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  8. Advances in the development of a vaccine for the prevention of human leptospirosis: a review.Revista do Instituto de Medicina Tropical de Sao Paulo · 2026
    Review
  9. Review
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  12. Host-Driven Genetic Diversity ofTransboundary and emerging diseases · 2026
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  18. Article
  19. Serovar-specific genomic features ofFrontiers in molecular biosciences · 2025
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  20. Article

125 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

15 authors at 6 institutions in 2 countries.

Dieter M BulachAustralian Bacterial Pathogenesis Program, Victorian Bioinformatics Consortium, Department of Microbiology, Monash University, Victoria 3800, Australia.
Richard L Zuerner
Peter Wilson
Torsten Seemann
Annette McGrath
Paul A Cullen
John Davis
Matthew Johnson
Elizabeth Kuczek
David P Alt
Brooke Peterson-Burch
Ross L Coppel
Julian I Rood
John K Davies
Ben Adler
Australian Genome Research Facility · AUMelbourne Bioinformatics · AUNational Animal Disease Center · USAustralian Research Council · AUAustralian Centre for HIV and Hepatitis Virology Research · AUUniversity of Queensland · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leptospirosis is one of the most common zoonotic diseases in the world, resulting in high morbidity and mortality in humans and affecting global livestock production. Most infections are caused by either Leptospira borgpetersenii or Leptospira interrogans, bacteria that vary in their distribution in nature and rely on different modes of transmission. We report the complete genomic sequences of two strains of L. borgpetersenii serovar Hardjo that have distinct phenotypes and virulence. These two strains have nearly identical genetic content, with subtle frameshift and point mutations being a common form of genetic variation. Starkly limited regions of synteny are shared between the large chromosomes of L. borgpetersenii and L. interrogans, probably the result of frequent recombination events between insertion sequences. The L. borgpetersenii genome is approximately 700 kb smaller and has a lower coding density than L. interrogans, indicating it is decaying through a process of insertion sequence-mediated genome reduction. Loss of gene function is not random but is centered on impairment of environmental sensing and metabolite transport and utilization. These features distinguish L. borgpetersenii from L. interrogans, a species with minimal genetic decay and that survives extended passage in aquatic environments encountering a mammalian host. We conclude that L. borgpetersenii is evolving toward dependence on a strict host-to-host transmission cycle.

Indexed as

Disease Transmission, InfectiousAnimalsBacterial ProteinsCattleChromosomes, BacterialDNA Transposable ElementsGene Expression Regulation, BacterialGenes, BacterialGenome, BacterialGenomicsHumansLeptospiraLeptospira interrogansMembrane ProteinsMolecular Sequence DataRepliconBacterial ProteinsDNA Transposable ElementsMembrane Proteins

Identifiers

PMID16973745
PMCPMC1599999
OpenAlexW2112752075

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.