Evidence map›Paper›PMID 27400652›Full record

ArticleBMC microbiology2016

Deep divergence and rapid evolutionary rates in gut-associated Acetobacteraceae of ants.

Bryan P Brown, Jennifer J Wernegreen

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2016. 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
6.7field-weighted citation impact, top 4% 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, 66 citations in OpenAlex.

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  19. Bacterial communities withinEcology and evolution · 2019
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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.

Bryan P BrownNicholas School of the Environment, Duke University, Box 3382, Durham, NC, 27708, USA.
Jennifer J WernegreenNicholas School of the Environment, Duke University, Box 3382, Durham, NC, 27708, USA. j.wernegreen@duke.edu.
Duke University · US

Funding

MOLECULAR EVOLUTIONARY CONSEQUENCES OF ENDOSYMBIOSISR01GM062626 · NIGMS · MARINE BIOLOGICAL LABORATORY · PI WERNEGREEN, JENNIFER JO · 2001 to 2010
$2.5M
NIGMS NIH HHS R01 GM062626
6 · The paper itself

Abstract

backgroundSymbiotic associations between gut microbiota and their animal hosts shape the evolutionary trajectories of both partners. The genomic consequences of these relationships are significantly influenced by a variety of factors, including niche localization, interaction potential, and symbiont transmission mode. In eusocial insect hosts, socially transmitted gut microbiota may represent an intermediate point between free living or environmentally acquired bacteria and those with strict host association and maternal transmission.

resultsWe characterized the bacterial communities associated with an abundant ant species, Camponotus chromaiodes. While many bacteria had sporadic distributions, some taxa were abundant and persistent within and across ant colonies. Specially, two Acetobacteraceae operational taxonomic units (OTUs; referred to as AAB1 and AAB2) were abundant and widespread across host samples. Dissection experiments confirmed that AAB1 and AAB2 occur in C. chromaiodes gut tracts. We explored the distribution and evolution of these Acetobacteraceae OTUs in more depth. We found that Camponotus hosts representing different species and geographical regions possess close relatives of the Acetobacteraceae OTUs detected in C. chromaiodes. Phylogenetic analysis revealed that AAB1 and AAB2 join other ant associates in a monophyletic clade. This clade consists of Acetobacteraceae from three ant tribes, including a third, basal lineage associated with Attine ants. This ant-specific AAB clade exhibits a significant acceleration of substitution rates at the 16S rDNA gene and elevated AT content. Substitutions along 16S rRNA in AAB1 and AAB2 result in ~10 % reduction in the predicted rRNA stability.

conclusionsCombined, these patterns in Camponotus-associated Acetobacteraceae resemble those found in cospeciating gut associates that are both socially and maternally transmitted. These associates may represent an intermediate point along an evolutionary trajectory manifest most extremely in symbionts with strict maternal transmission. Collectively, these results suggest that Acetobacteraceae may be a frequent and persistent gut associate in Camponotus species and perhaps other ant groups, and that its evolution is strongly impacted by this host association.

Indexed as

Biological EvolutionGastrointestinal MicrobiomeAcetobacteraceaeAnimalsAntsBase SequenceBiodiversityDNA, BacterialDNA, RibosomalEvolution, MolecularGenes, BacterialHost SpecificityMicrobial ConsortiaPhylogenyRNA, Ribosomal, 16SSequence AlignmentDNA, BacterialDNA, RibosomalRNA, Ribosomal, 16SAcetic acid bacteriaEusocialityGut microbiotaInsectsPhylogenetic diversification

Identifiers

PMID27400652
PMCPMC4939635
OpenAlexW2464085885

What OpenQuestion holds

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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.