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nepovirus

n. Any of the genus (taxlink Nepovirus genus) of plant viruses of the family ''(taxlink Secoviridae family)'', transmitted by nematodes.

Wikipedia
Nepovirus

Nepovirus is a genus of viruses in the order Picornavirales, in the family Secoviridae, in the subfamily Comovirinae. Plants serve as natural hosts. There are currently 36 species in this genus including the type species Tobacco ringspot virus. Nepoviruses, unlike the other two genera ( Comovirus and Fabavirus) in the subfamily Comovirinae, are transmitted by nematodes.