Evidence map›Paper›PMID 24625961›Full record

ArticleGenome biology and evolution2014

A phylogenomic view of ecological specialization in the Lachnospiraceae, a family of digestive tract-associated bacteria.

Conor J Meehan, Robert G Beiko

Open access · goldAbstract read
In one paragraph

Article in Genome biology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 401 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
401citing papers in PubMed, 3 pooled it
12.8field-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

401 citing papers in PubMed, 3 syntheses or guidelines pooled it, 732 citations in OpenAlex.

  1. Global Microbiome: Core and Unique Signatures Across Diverse Populations.International journal of molecular sciences · 2026
    Pooled it
  2. Pooled it
  3. Effect of Intensity and Duration of Exercise on Gut Microbiota in Humans: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
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  11. The Role ofInternational journal of molecular sciences · 2026
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341 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

2 authors at 1 institution in 1 country.

Conor J MeehanDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada.
Robert G Beiko
Dalhousie University · CA

Funding

Canadian Institutes of Health Research CMF-108026
6 · The paper itself

Abstract

Several bacterial families are known to be highly abundant within the human microbiome, but their ecological roles and evolutionary histories have yet to be investigated in depth. One such family, Lachnospiraceae (phylum Firmicutes, class Clostridia) is abundant in the digestive tracts of many mammals and relatively rare elsewhere. Members of this family have been linked to obesity and protection from colon cancer in humans, mainly due to the association of many species within the group with the production of butyric acid, a substance that is important for both microbial and host epithelial cell growth. We examined the genomes of 30 Lachnospiraceae isolates to better understand the origin of butyric acid capabilities and other ecological adaptations within this group. Butyric acid production-related genes were detected in fewer than half of the examined genomes with the distribution of this function likely arising in part from lateral gene transfer (LGT). An investigation of environment-specific functional signatures indicated that human gut-associated Lachnospiraceae possess genes for endospore formation, whereas other members of this family lack key sporulation-associated genes, an observation supported by analysis of metagenomes from the human gut, oral cavity, and bovine rumen. Our analysis demonstrates that adaptation to an ecological niche and acquisition of defining functional roles within a microbiome can arise through a combination of both habitat-specific gene loss and LGT.

Indexed as

Genome, BacterialMetagenomeAnimalsBacteriaButyric AcidEcosystemEvolution, MolecularGastrointestinal TractGene Transfer, HorizontalHumansMammalsPhylogenyRNA, Ribosomal, 16SSequence Analysis, DNAButyric AcidRNA, Ribosomal, 16Sbutyric acidlateral gene transfermetagenomicsmicrobial genomesphylogenomicssporulation

Identifiers

PMID24625961
PMCPMC3971600
OpenAlexW2095854550

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.