• Source: Comovirinae

Comovirinae is a subfamily of viruses in the order Picornavirales, in the family Secoviridae; its genera were formerly classified in the family Comoviridae. Plants serve as natural hosts. There are 62 species in this subfamily, assigned to 3 genera.




Taxonomy


The genera Comovirus, Nepovirus and Fabavirus were classified into the family Comoviridae in 1993. This family was classified as part of the order Picornavirales when this order was created (2008), and its genera were reclassified as the subfamily Comovirinae of the family Secoviridae in 2009.
The subfamily contains the following genera:

Comovirus
Fabavirus
Nepovirus




Structure


Viruses in Comovirinae are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genome segments are encapsidated separately into two different types of particle similar in size. Genomes are linear and segmented, bipartite, around 24-7kb in length.




Life cycle


Viral replication is cytoplasmic. 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. Transmission routes are mechanical.




References






External links



Viralzone: Comovirinae
ICTV

Kata Kunci Pencarian:

• Comovirinae
• Nepovirus
• Secoviridae
• Mosaic virus
• RNA virus
• Broad bean wilt virus 1
• Peach enation virus
• Fabavirus
• Cherry leaf roll virus
• List of virus families and subfamilies