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Molecular characterization of the genome of duck enteritis virus

文献类型： 外文期刊

作者： Li, Yufeng 1 ; Huang, Bing 3 ; Ma, Xiuli 3 ; Wu, Jing 3 ; Li, Feng 3 ; Ai, Wu 3 ; Song, Minxun 1 ; Yang, Hanchun 1 ;

作者机构： 1.China Agr Univ, Coll Vet Med, Minist Agr, Key Lab Zoonosis, Beijing 100193, Peoples R China

2.China Agr Univ, State Key Lab Agrobiotechnol, Beijing 100193, Peoples R China

3.Shandong Acad Agr Sci, Poultry Inst, Jinan 250023, Peoples R China

关键词： Duck enteritis virus (DEV);Genome;Molecular characterization

期刊名称：VIROLOGY （ 影响因子：3.616； 五年影响因子：3.967 ）

ISSN： 0042-6822

年卷期： 2009 年 391 卷 2 期

页码：

收录情况： SCI

摘要： The genomic sequence of a strain of duck enteritis virus (DEV) was determined and analyzed in this study. The size of its genome is 158,091 bp in length and the genome is predicted to encode 78 putative proteins and resembles the members of the Alphaherpesvirinae in genomic organization and gene composition. The genome of the virus is composed of a unique long (UL) region, a unique short (US) region, a unique short internal repeat (IRS) region and a unique short terminal repeat (TRS) region. Its genomic arrangement pattern (UL-IRS-US-TRS) corresponds to D-type herpesvirus and is consistent with the members of Varicellovirus and Iltovirus genera. Sequence analysis reveals that the genome of the virus contains 67 genes having homologs in most members of the Alphaherpesvirinae. Out of these genes, one gene has a homolog, in cercopithecine herpesvirus 8 which is a virus of Betaherpesvirinae, and 5 genes have homologs in avian herpesviruses. Furthermore, the genome possesses three unique genes without homologs in any other herpesviruses. Like most members of the Alphaherpesvirinae, the genes in the UL region of its genome are well conserved, whereas the gene arrangement of IRS-US is similar to that of Marek's disease virus and equine herpesviruses 1. Therefore, our data based on the genomic analysis suggest that DEV represents an osculant taxonomic entity within the Alphaherpesvirinae. (C) 2009 Elsevier Inc. All rights reserved.

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