Classification
of
Plant
Viruses - The Plant Virus Subcommittee established in 1966 by the Executive Committee of the International Committee on Nomenclature recommended a classification of viruses into 16 subgroups, including 4 monotypic groups (12-16) (Harrison et. al, 1971).
These groups are
1. Tobravirus group
2. Tobamovirus group
3. Potexvirus group
4. Carlavirus group
5. Potyvirus group