Tenuivirus (genus)

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Rice stripe virus symptoms on rice (click on image to enlarge it)
Author(s): William M. Brown Jr.
Source: IPM Images

Phenuiviridae - Tenuivirus

The family Phenuiviridae belongs to the order Bunyavirales. Apart from some plant viruses, it includes mainly viruses that cause diseases in humans and animals like the Rift Valley fever virus. In most cases, the genome has 3 segments, the S, M and L segments, which are embedded in spherical and enveloped particles.

The genus Tenuivirus includes plant viruses which are similar to the Rice stripe virus and most of them infect cereals and grasses. They are often transmitted by insect vectors. Tenuiviruses lack the envelop found in other Phenuiviridae and the genome consists of 4 or 5 (instead of 3) RNAs. The complete genome is around 16 kb. The RNA segments are single-stranded, linear and either negative-sense or ambisense. RNA3 has always an ambisense organization.

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