Evidence map›Paper›PMID 22721417›Full record

ArticleBMC genomics2012

The genomic basis for the evolution of a novel form of cellular reproduction in the bacterium Epulopiscium.

David A Miller, Garret Suen, Kendall D Clements, Esther R Angert

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

  1. The exceptional form and function of the giant bacteriumProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  2. Review
  3. Host-Parasite Interaction of Atlantic salmon (Frontiers in immunology · 2021
    Article
  4. Article
  5. Article
  6. Genomic diversification of giant enteric symbionts reflects host dietary lifestyles.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  7. Article
  8. Article
  9. Small but Mighty: Cell Size and Bacteria.Cold Spring Harbor perspectives in biology · 2015
    Review
  10. Article
  11. Article
  12. Article
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

4 authors at 3 institutions in 2 countries.

David A MillerDepartment of Microbiology, Cornell University, Ithaca, NY 14853, USA.
Garret Suen
Kendall D Clements
Esther R Angert
Cornell University · USUniversity of Auckland · NZUniversity of Wisconsin–Madison · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEpulopiscium sp. type B, a large intestinal bacterial symbiont of the surgeonfish Naso tonganus, does not reproduce by binary fission. Instead, it forms multiple intracellular offspring using a process with morphological features similar to the survival strategy of endospore formation in other Firmicutes. We hypothesize that intracellular offspring formation in Epulopiscium evolved from endospore formation and these two developmental programs share molecular mechanisms that are responsible for the observed morphological similarities.

resultsTo test this, we sequenced the genome of Epulopiscium sp. type B to draft quality. Comparative analysis with the complete genome of its close, endospore-forming relative, Cellulosilyticum lentocellum, identified homologs of well-known sporulation genes characterized in Bacillus subtilis. Of the 147 highly conserved B. subtilis sporulation genes used in this analysis, we found 57 homologs in the Epulopiscium genome and 87 homologs in the C. lentocellum genome.

conclusionsGenes coding for components of the central regulatory network which govern the expression of forespore and mother-cell-specific sporulation genes and the machinery used for engulfment appear best conserved. Low conservation of genes expressed late in endospore formation, particularly those that confer resistance properties and encode germinant receptors, suggest that Epulopiscium has lost the ability to form a mature spore. Our findings provide a framework for understanding the evolution of a novel form of cellular reproduction.

Indexed as

Genome, BacterialAmino Acid SequenceBacillus subtilisClostridiumEvolution, MolecularGene Regulatory NetworksGram-Positive BacteriaMolecular Sequence DataPromoter Regions, GeneticSequence AlignmentSpores, Bacterial

Identifiers

PMID22721417
PMCPMC3416734
OpenAlexW2058932746

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.