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Related Experiment Video

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Detection of the Genome and Transcripts of a Persistent DNA Virus in Neuronal Tissues by Fluorescent In situ Hybridization Combined with Immunostaining
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Anguillid herpesvirus 1 transcriptome.

Steven J van Beurden1, Derek Gatherer, Karen Kerr

  • 1Central Veterinary Institute of Wageningen UR, Lelystad, The Netherlands.

Journal of Virology
|July 13, 2012
PubMed
Summary
This summary is machine-generated.

This study reveals the transcriptome of anguillid herpesvirus 1 (AngHV1) during active infection. It details gene expression, finding less antisense transcription and more RNA splicing than expected in this fish virus.

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Area of Science:

  • Virology
  • Genomics
  • Transcriptomics

Background:

  • Anguillid herpesvirus 1 (AngHV1) is an economically significant eel virus.
  • Understanding the AngHV1 transcriptome is crucial for comprehending its lytic life cycle and pathogenesis.

Purpose of the Study:

  • To characterize the AngHV1 transcriptome using deep sequencing.
  • To identify viral gene expression patterns, including antisense transcription and RNA splicing.
  • To revise the AngHV1 genome map based on transcriptomic data.

Main Methods:

  • Deep sequencing of poly(A) RNA to analyze the AngHV1 transcriptome.
  • Reverse transcription polymerase chain reaction (RT-PCR) to confirm splice junctions.
  • Rapid amplification of cDNA ends (RACE) to identify transcript termini.

Main Results:

  • Low levels of antisense transcription (1.5%) were observed, contrasting with mammalian herpesviruses.
  • A higher-than-anticipated prevalence of RNA splicing was detected, with 100 splice junctions identified.
  • The AngHV1 genome map was revised to include 129 protein-coding genes, with 5 duplicated in the terminal repeat.
  • Numerous 5' and 3' transcript ends were identified, refining the understanding of gene expression.

Conclusions:

  • This study provides the first detailed view of a fish herpesvirus transcriptome.
  • The findings offer insights into AngHV1 genomics and gene expression regulation.
  • The revised genome map and identified splice junctions enhance our understanding of AngHV1 biology.