Benyvirus (genus)

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Beet necrotic yellow vein virus symptoms on Beta vulgaris root (click on image to enlarge it)
Author(s): William M. Brown Jr.
Source: IPM Images

Benyviridae - Benyvirus

Benyvirus is the only genus in the family Benyviridae. The genus includes viruses which are similar to the Beet necrotic yellow vein virus. They are causing necrotic, leaf mosaic and mottle diseases and are transmitted by fungi from the genus Polymyxa.

The viruses have multicomponent particles with each of the 4 or 5 RNA segments being encapsidated in a separate particle. The individual particles are rod-shaped, straight, not enveloped and with a central canal. They vary in size from 80-390 nm and are approximately 20 nm wide. The RNA segments are positive sensed and single stranded with a size of 1.3 to 6.7 kb.

Currently, the following species have been entered into the system: