Evidence map›Paper›PMID 23075838›Full record

ArticleProceedings. Biological sciences2012

Maintaining functional major histocompatibility complex diversity under inbreeding: the case of a selfing vertebrate.

A Ellison, J Allainguillaume, S Girdwood, J Pachebat, K M Peat, P Wright, S Consuegra

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Article
  2. MHC Diversity Across Time and Space.Ecology and evolution · 2025
    Review
  3. Article
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  7. Article
  8. Immunogenetic novelty confers a selective advantage in host-pathogen coevolution.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
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  11. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

A EllisonIBERS, Aberystwyth University, Penglais Campus, Aberystwyth SY23 3DA, UK.
J Allainguillaume
S Girdwood
J Pachebat
K M Peat
P Wright
S Consuegra

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major histocompatibility complex (MHC) genes encode proteins that present pathogen-derived antigens to T-cells, initiating the adaptive immune response in vertebrates. Although populations with low MHC diversity tend to be more susceptible to pathogens, some bottlenecked populations persist and even increase in numbers despite low MHC diversity. Thus, the relative importance of MHC diversity versus genome-wide variability for the long-term viability of populations after bottlenecks and/or under high inbreeding is controversial. We tested the hypothesis that genome-wide inbreeding (estimated using microsatellites) should be more critical than MHC diversity alone in determining pathogen resistance in the self-fertilizing fish Kryptolebias marmoratus by analysing MHC diversity and parasite loads in natural and laboratory populations with different degrees of inbreeding. Both MHC and neutral diversities were lost after several generations of selfing, but we also found evidence of parasite selection acting on MHC diversity and of non-random loss of alleles, suggesting a possible selective advantage of those individuals with functionally divergent MHC, in accordance with the hypothesis of divergent allele advantage. Moreover, we found that parasite loads were better explained by including MHC diversity in the model than by genome-wide (microsatellites) heterozygosity alone. Our results suggest that immune-related overdominance could be the key in maintaining variables rates of selfing and outcrossing in K. marmoratus and other mixed-mating species.

Indexed as

InbreedingPolymorphism, GeneticSelection, GeneticAnimalsBelizeCyprinodontiformesExonsGenomeHermaphroditic OrganismsHistocompatibility Antigens Class IMicrosatellite RepeatsMolecular Sequence DataPhylogenyPolymerase Chain ReactionSequence Analysis, DNASequence Analysis, ProteinHistocompatibility Antigens Class I

Identifiers

PMID23075838
PMCPMC3497237

What OpenQuestion holds

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Registered trials

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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.