EsturgeonV1, Ncbi, Curation, bibRecord, 000333

Evolution of MHC class I genes in two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis).

Identifieur interne : 000333 ( Ncbi/Curation ); précédent : 000332; suivant : 000334

Evolution of MHC class I genes in two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis).

Auteurs : Dengqiang Wang [République populaire de Chine] ; Lei Zhong ; Qiwei Wei ; Xiaoni Gan ; Shunping He

Source :

FEBS letters [ 1873-3468 ] ; 2010.

RBID : pubmed:20542035

Descripteurs français

Wicri :
- geographic : République populaire de Chine.

English descriptors

KwdEn :
- Amino Acid Sequence, Animals, China, Evolution, Molecular, Fishes (genetics), Genes, MHC Class I (genetics), HLA-A2 Antigen (chemistry), HLA-A2 Antigen (genetics), Humans, Molecular Sequence Data, Phylogeny, Recombination, Genetic (genetics), Sequence Analysis, DNA.
MESH :
- chemical , chemistry : HLA-A2 Antigen.
- chemical , genetics : HLA-A2 Antigen.
- geographic : China.
- genetics : Fishes, Genes, MHC Class I, Recombination, Genetic.
- Amino Acid Sequence, Animals, Evolution, Molecular, Humans, Molecular Sequence Data, Phylogeny, Sequence Analysis, DNA.

Abstract

Here we present the first isolation of major histocompatibility complex (MHC) class I genes from two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis). Seventeen sequences obtained showed high polymorphism and positive natural selection with dN/dS>1. Evolutionary relationships revealed that sequences from paddlefish and Chinese sturgeon distinguished from other vertebrate class I and had an intermingling of alleles, which indicates that Acipenseriformes have a common ancestral gene of class I and a trans-species polymorphism across Acipenseriformes. We also found clear evidence of recombination among class I genes of paddlefish and Chinese sturgeon.

DOI: 10.1016/j.febslet.2010.05.065
PubMed: 20542035

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Le document en format XML

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<term>Molecular Sequence Data</term>
<term>Phylogeny</term>
<term>Recombination, Genetic (genetics)</term>
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<front><div type="abstract" xml:lang="en">Here we present the first isolation of major histocompatibility complex (MHC) class I genes from two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis). Seventeen sequences obtained showed high polymorphism and positive natural selection with dN/dS>1. Evolutionary relationships revealed that sequences from paddlefish and Chinese sturgeon distinguished from other vertebrate class I and had an intermingling of alleles, which indicates that Acipenseriformes have a common ancestral gene of class I and a trans-species polymorphism across Acipenseriformes. We also found clear evidence of recombination among class I genes of paddlefish and Chinese sturgeon.</div>
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Evolution of MHC class I genes in two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis).

Evolution of MHC class I genes in two ancient fish, paddlefish (Polyodon spathula) and Chinese sturgeon (Acipenser sinensis).

Source :

Descripteurs français

English descriptors

Abstract

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Le document en format XML

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Pour générer des pages wiki