Molecular characterization of the genome of duck enteritis virus

Yufeng Li, Bing Huang, Xiuli Ma, Jing Wu, Feng Li, Wu Ai, Minxun Song, Hanchun Yang

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)151-161
Number of pages11
JournalVirology
Volume391
Issue number2
DOIs
StatePublished - Sep 1 2009

Bibliographical note

Funding Information:
This work was supported by the Nature Science Foundation of Shandong Province (Y2007D70) and the Nation High Technology Research and Development Program (863 Program) of China (2006AA10A205).

Keywords

  • Duck enteritis virus (DEV)
  • Genome
  • Molecular characterization

ASJC Scopus subject areas

  • Virology

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