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Virus classification
Group: Group IV ((+)ssRNA)
Order: Picornavirales
Family: Secoviridae
Genus: Cheravirus
Type Species

Cheravirus is a genus of viruses in the order Picornavirales, in the family Secoviridae. Plants serve as natural hosts. There are currently four species in this genus including the type species Cherry rasp leaf virus.[1][2][3]

The name is derived from Cherry rasp leaf virus, the type member.


Group: ssRNA(+)



Viruses in Cheravirus are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 25-30 nm. Genomes are linear and bipartite, around 13.3kb in length.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Cheravirus Icosahedral Pseudo T=3 Non-enveloped Linear Segmented

Life cycle[edit]

Viral replication is cytoplasmic, and is lysogenic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded rna virus transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (nematodes maybe seed-transmitted). Transmission routes are vector and seed borne.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Cheravirus Plants None Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Nematodes; mites; thrips


  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015. 
  2. ^ a b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015. 
  3. ^ ICTVdB Management (2006). Cheravirus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA

External links[edit]