Evidence map›Paper›PMID 19319519›Full record

ArticleImmunogenetics2009

Trans-species polymorphism of the Mhc class II DRB-like gene in banded penguins (genus Spheniscus).

Eri F Kikkawa, Tomi T Tsuda, Daisuke Sumiyama, Taeko K Naruse, Michio Fukuda, Masanori Kurita, Rory P Wilson, Yvon LeMaho, Gary D Miller, Michio Tsuda and 3 more

Abstract read
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Article in Immunogenetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 38 citations in OpenAlex.

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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

13 authors at 6 institutions in 4 countries.

Eri F KikkawaDepartment of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Bousei-dai Isehara, Kanagawa, Japan.
Tomi T Tsuda
Daisuke Sumiyama
Taeko K Naruse
Michio Fukuda
Masanori Kurita
Rory P Wilson
Yvon LeMaho
Gary D Miller
Michio Tsuda
Koichi Murata
Jerzy K Kulski
Hidetoshi Inoko
Tokai University · JPCentre National de la Recherche Scientifique · FRNational Aquarium · USNihon University · JPTokyo Medical and Dental University · JPUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Major Histocompatibility Complex (Mhc) class II DRB locus of vertebrates is highly polymorphic and some alleles may be shared between closely related species as a result of balancing selection in association with resistance to parasites. In this study, we developed a new set of PCR primers to amplify, clone, and sequence overlapping portions of the Mhc class II DRB-like gene from the 5'UTR end to intron 3, including exons 1, 2, and 3 and introns 1 and 2 in four species (20 Humboldt, six African, five Magellanic, and three Galapagos penguins) of penguin from the genus Spheniscus (Sphe). Analysis of gene sequence variation by the neighbor-joining method of 21 Sphe sequences and 20 previously published sequences from four other penguin species revealed overlapping clades within the Sphe species, but species-specific clades for the other penguin species. The overlap of the DRB-like gene sequence variants between the four Sphe species suggests that, despite their allopatric distribution, the Sphe species are closely related and that some shared DRB1 alleles may have undergone a trans-species inheritance because of balancing selection and/or recent rapid speciation. The new primers and PCR assays that we have developed for the identification of the DRB1 DNA and protein sequence variations appear to be useful for the characterization of the molecular evolution of the gene in closely related Penguin species and might be helpful for the assessment of the genetic health and the management of the conservation and captivity of these endangered species.

Indexed as

Polymorphism, GeneticAmino Acid SequenceAnimalsExonsGene FrequencyHistocompatibility Antigens Class IIIntronsMolecular Sequence DataPhylogenySpheniscidaeHistocompatibility Antigens Class II

Identifiers

PMID19319519
OpenAlexW2000284066

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.