Genetic evidence for a unique taxonomic position of white spot syndrome virus of shrimp: Genus Whispovirus
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White spot syndrome virus (WSSV) is a relatively new agent causing a zoonotic disease in shrimp. Taxonomically this virus is presently an orphaned, floating virus species. WSSV has a unique virion morphology, genome structure, gene content and a distant phylogenetic relationship with other large DNA viruses on the basis of a few conserved genes. The virus lacks overall gene homology with members of the baculovirus genera Nucleopolyhedrovirus and Granulovirus and has a discriminate size of the virion structural proteins. We here propose that WSSV is a representative of a new genus characterized by viruses with an appendage at one end of the virion. For this genus we coin the name whispovirus to accommodate WSSV and related viruses.
van Hulten, M. C. W., & Vlak, J. M. (2002). Genetic evidence for a unique taxonomic position of white spot syndrome virus of shrimp: Genus Whispovirus. In C. R. Lavilla-Pitogo & E. R. Cruz-Lacierda (Eds.), Diseases in Asian aquaculture IV: Proceedings of the Fourth Symposium on Diseases in Asian Aquaculture, 22-26 November 1999, Cebu City, Philippines (pp. 25-35). Fish Health Section, Asian Fisheries Society.