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tospovirus
The Tospoviruses are a genus (''Tospovirus'') of negative RNA virus found within the family ''Bunyaviridae''. They are the sole group of plant infecting viruses in this family, as all other described members of the ''Bunyaviridae'' infect animals. The genus takes its name from the discovery of ''Tomato spotted wilt virus'' (TSWV) in Australia in 1915. It remained the only member of the family until the early 1990s when genetic characterisation of viruses discovered in plants became more common. There are now at least twenty viral species in the family with more being recorded and described on a relatively regular basis. Together, these viruses have been documented infecting over eight hundred different plant species from 82 different families.
== Genome ==
This virus has a single stranded RNA genome with negative polarity, therefore it is classified as a Class V virus ((-)ssRNA viruses). The structure of the genome resembles that of the genus Phlebovirus. The genome is linear and is 17.2 kb in size. It is segmented into three segments termed S (2.9kb), M (5.4kb) and L (8.9kb). The M and S RNA segments encode for proteins in an ambisense orientation.
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