Notes on Genus: Botrexvirus

flexuous filaments
flexuous filaments

Type member: Botrytis virus X


General Description

This is a mycovirus genus in the family Alphaflexiviridae. The name is derived from the type (and only) member, Botrytis virus X.


Virions filamentous, flexuous, not enveloped, about 720 nm long and 12-13 nm in diameter.


Monopartite, linear, polyadenylated ssRNA of about 7 kb.

Genus Genomic Organization

Five open reading frames have been identified.

Type Member Genomic Organization

The genome is believed to encode five proteins:
1. 158.2 kDa Replication protein
2. 30.1 kDa Unknown function
3. 43.5 kDaCoat protein
4. 13.9 kDa Unknown function
5. 14.3 kDa Unknown function