Virus classification
Group: Group III (dsRNA)
Order: unassigned
Family: Hypoviridae

Hypoviridae is a family of viruses. Fungi serve as natural hosts. There are currently four species in this family, divided among 1 genera. Diseases associated with this family include: host virulence reduction. [1][2]


The diameter is around 50-80nm. Genomes are linear, around 9-13kb in length. The genome has 1 or 2 open reading frames.[1] Hypoviridae was the first family of viruses described that lacked a capsid.[3] and does not assemble any virion to spread.

Genus Structure Symmetry Capsid Genomic Arrangement Genomic Segmentation
HypovirusNo true capsidNon-EnvelopedLinearMonopartite

Life Cycle

Viral replication is cytoplasmic. Replication follows the double-stranded RNA virus replication model. Double-stranded rna virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement. Fungi serve as the natural host.[1] The virus never leaves its host and probably replicates in pleomorphic host-derived lipid vesicles. Transmission is probably dependent on host hyphal anastomosis.[3]

Genus Host Details Tissue Tropism Entry Details Release Details Replication Site Assembly Site Transmission
HypovirusFungiNoneCytoplasmic exchange; hyphal anastomosisCytoplasmic exchange; hyphal anastomosisCytoplasmCytoplasmCytoplasmic exchange; hyphal anastomosis


  1. 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
  3. 1 2 Dolja, V. V.; Koonin, E. V. (2012). "Capsid-Less RNA Viruses". ELS. doi:10.1002/9780470015902.a0023269. ISBN 0470016175.
This article is issued from Wikipedia - version of the 12/2/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.