Fijivirus

Fijivirus is a genus of double-stranded RNA viruses in the order Reovirales and family Spinareoviridae. Plants serve as natural hosts. Diseases associated with this genus include: galls (tumours) in infected plants and Fiji disease, with severe stunting, deformation and death. The group name derives from Fiji island the place where the first virus was isolated. There are nine species in this genus.

==Structure== thumb|Rice black-streaked dwarf virus|Rice black‐streaked dwarf virus genomic RNA segments|upright Fijivirus genome composition contains ten linear double-stranded RNA (dsRNA) and is carried within virus particles referred to as virions. The Fijivirus genome is constructed inside the virion and is non-enveloped. It contains two separate layers of capsids, an inner and an outer layer, which are constructed by proteins that shell the virus. The capsids are of icosahedral symmetry (T=2 for inner capsid, T=13 for outer capsid), and have an obvious round structure, which is on average 65–70 nm in diameter. Genomes are linear and segmented, around 4.5 kbp in length. The genome codes for 12 proteins.