Evidence map›Paper›PMID 20100329›Full record

ArticleBMC evolutionary biology2010

Molecular diversity of antimicrobial effectors in the oyster Crassostrea gigas.

Paulina Schmitt, Yannick Gueguen, Erick Desmarais, Evelyne Bachère, Julien de Lorgeril

Open access · goldAbstract read
In one paragraph

Article in BMC evolutionary biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
6.1field-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

20 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Cross-talk and mutual shaping between the immune system and the microbiota during an oyster's life.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  3. Article
  4. Immune diversity in lophotrochozoans, with a focus on recognition and effector systems.Computational and structural biotechnology journal · 2023
    Review
  5. Article
  6. Antimicrobial Peptides Targeting Gram-Positive Bacteria.Pharmaceuticals (Basel, Switzerland) · 2016
    Review
  7. Infectious diseases of marine molluscs and host responses as revealed by genomic tools.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016
    Review
  8. Article
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  15. Article
  16. Use of OmpU porins for attachment and invasion of Crassostrea gigas immune cells by the oyster pathogen Vibrio splendidus.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
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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

5 authors at 3 institutions in 2 countries.

Paulina SchmittIfremer, CNRS, Université de Montpellier II, IRD, UMR 5119 Ecosystèmes Lagunaires, Place Eugène Bataillon, CC80, 34095 Montpellier, France. Julien.De.Lorgeril@ifremer.fr
Yannick Gueguen
Erick Desmarais
Evelyne Bachère
Julien de Lorgeril
Centre National de la Recherche Scientifique · FRUniversité de Montpellier · FRInstitut de Recherche pour le Développement · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo gain insight into the molecular diversity of antimicrobial peptides and proteins in the oyster Crassostrea gigas, we characterized and compared the sequence polymorphism of the antimicrobial peptides (AMPs), Cg-Defensins (Cg-Defs) and Cg-Proline Rich peptide (Cg-Prp), and of the bactericidal permeability increasing protein, Cg-BPI. For that, we analyzed genomic and transcript sequences obtained by specific PCR amplification and in silico searches.

resultsHigh diversification among the three antimicrobial effectors was evidenced by this polymorphism survey. On the basis of sequence phylogenies, each AMP aggregates into clearly defined groups of variants and is the product of a multigenic family displaying a variety of gene structures. In contrast, Cg-bpi forms a single group and is encoded by a single gene copy. Moreover, we identified for both AMPs several genetic mechanisms of diversification such as recombination, parallel mutations leading to phylogenetic homoplasy and indel events. In addition, the non synonymous to synonymous substitutions ratio by codon (dN/dS) revealed several negatively and positively selected sites for both AMPs, suggesting that directional selection pressures have shaped their sequence variations.

conclusionsThis study shows for the first time in a mollusc that antimicrobial peptides and proteins have been subject to distinct patterns of diversification and we evidence the existence of different evolutionary routes leading to such sequence variability.

Indexed as

Evolution, MolecularPhylogenyAmino Acid SequenceAnimalsAntimicrobial Cationic PeptidesBlood ProteinsCrassostreaDefensinsMolecular Sequence DataMultigene FamilyPolymorphism, GeneticSequence AlignmentSequence Analysis, DNAAntimicrobial Cationic Peptidesbactericidal permeability increasing proteinBlood ProteinsDefensins

Identifiers

PMID20100329
PMCPMC2823732
OpenAlexW2134384430

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.