Two different clades of copia-like retrotransposons in the red alga, Porphyra yezoensis

被引：8

作者：

Peddigari, Suresh ^{[1
]}

Zhang, Wenbo ^{[1
]}

Takechi, Katsuaki ^{[1
]}

Takano, Hiroyoshi ^{[1
]}

Takio, Susumu ^{[2
]}

机构：

[1] Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan

[2] Kumamoto Univ, Ctr Marine Environm Studies, Kumamoto 8608555, Japan

来源：

GENE | 2008年 / 424卷 / 1-2期

关键词：

Transposable element; Reverse transcriptase; Integrase; Rhodophyta;

D O I：

10.1016/j.gene.2008.07.021

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

A copia-like retrotransposon referred to as PyRE1G1 was isolated from the genome of the red alga Porphyra yezoensis. PyRE1G1 is 4807 bp in length, with 204 bp long terminal repeats (LTRs) at both ends. PyRE1G1 has an open reading frame of 1401 residues encoding gag, protease, integrase, reverse transcriptase (RT), and RNase H. From the order of gene arrangement of proteins, PyRE1G1 appears to be a copia-like retrotransposon. Genomic Southern blot analysis suggests that PyRE1G1 consists of a small gene family. From the phylogenetic tree of RT sequences, PyRE1G1 is grouped in the clade of usual copia elements and distinct from the previously isolated red algal copia-like gene PyRE10G in that the latter is closely related to a new clade of aquatic animal-specific copia-like retrotransposons. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：153 / 158

页数：6

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