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EM of low res Marnavirus.jpg
Low-resolution image of a marnavirus under electron microscope
Virus classification
Group: Group IV ((+)ssRNA)
Order: Picornavirales
Family: Marnaviridae

Marnaviridae is a family of RNA viruses in the order Picornavirales. The family has one genus, Marnavirus, which has one species: Heterosigma akashiwo RNA virus (HaRNAV). HaRNAV has a monopartite, linear, positive-sense, single-stranded RNA genome that is about 8.6 kilobases in length. HaRNAV infects Heterosigma akashiwo algae.[1]


  1. ^ Lang, A. S.; Culley, A. I.; Suttle, C. A. (2004). "Genome sequence and characterization of a virus (HaRNAV) related to picorna-like viruses that infects the marine toxic bloom-forming alga Heterosigma akashiwo". Virology 320 (2): 206–17. doi:10.1016/j.virol.2003.10.015. PMID 15016544. 

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