Evidence map›Paper›PMID 23475937›Full record

ArticleGenome biology and evolution2013

Sequence context of indel mutations and their effect on protein evolution in a bacterial endosymbiont.

Laura E Williams, Jennifer J Wernegreen

Open access · goldAbstract read
In one paragraph

Article in Genome biology and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
7.3field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
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  4. Comprehensive Analysis of the Fourteen Complete Genome Sequences ofJournal of microbiology and biotechnology · 2024
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  11. Bacteriophage-Insensitive Mutants of Antimicrobial-ResistantInternational journal of molecular sciences · 2020
    Article
  12. Complete mitochondrial genome sequence ofMitochondrial DNA. Part B, Resources · 2019
    Article
  13. Article
  14. Genomic Comparison Among Global Isolates ofFrontiers in cellular and infection microbiology · 2018
    Article
  15. Evolution of intrinsic disorder in eukaryotic proteins.Cellular and molecular life sciences : CMLS · 2017
    Review
  16. Solving the master equation for Indels.BMC bioinformatics · 2017
    Article
  17. Article
  18. Article
  19. Article
  20. 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

2 authors at 1 institution in 2 countries.

Laura E WilliamsInstitute for Genome Sciences and Policy, Duke University, NC, USA.
Jennifer J Wernegreen
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 GM062626NIGMS NIH HHS R01GM062626
6 · The paper itself

Abstract

Indel mutations play key roles in genome and protein evolution, yet we lack a comprehensive understanding of how indels impact evolutionary processes. Genome-wide analyses enabled by next-generation sequencing can clarify the context and effect of indels, thereby integrating a more detailed consideration of indels with our knowledge of nucleotide substitutions. To this end, we sequenced Blochmannia chromaiodes, an obligate bacterial endosymbiont of carpenter ants, and compared it with the close relative, B. pennsylvanicus. The genetic distance between these species is small enough for accurate whole genome alignment but large enough to provide a meaningful spectrum of indel mutations. We found that indels are subjected to purifying selection in coding regions and even intergenic regions, which show a reduced rate of indel base pairs per kilobase compared with nonfunctional pseudogenes. Indels occur almost exclusively in repeat regions composed of homopolymers and multimeric simple sequence repeats, demonstrating the importance of sequence context for indel mutations. Despite purifying selection, some indels occur in protein-coding genes. Most are multiples of three, indicating selective pressure to maintain the reading frame. The deleterious effect of frameshift-inducing indels is minimized by either compensation from a nearby indel to restore reading frame or the indel's location near the 3'-end of the gene. We observed amino acid divergence exceeding nucleotide divergence in regions affected by frameshift-inducing indels, suggesting that these indels may either drive adaptive protein evolution or initiate gene degradation. Our results shed light on how indel mutations impact processes of molecular evolution underlying endosymbiont genome evolution.

Indexed as

Evolution, MolecularINDEL MutationSymbiosisAmino Acid SequenceAnimalsAntsBacterial ProteinsBase SequenceDNA, IntergenicEnterobacteriaceaeGenetic VariationMicrosatellite RepeatsMolecular Sequence DataPhylogenySelection, GeneticBacterial ProteinsDNA, Intergenic

Identifiers

PMID23475937
PMCPMC3622351
OpenAlexW2149758172

What OpenQuestion holds

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LicenceCC BY-NC
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.