Table 1. Characteristics of the family Partitiviridae.

Typical member:	Atkinsonella hypoxylon virus, 2H (RNA1, L39125; RNA2, L39126), species Atkinsonella hypoxylon virus, genus Betapartitivirus
Genome	3–4.8 kbp of linear bisegmented dsRNA
Virion	Isometric, non-enveloped, 25–43 nm in diameter; dsRNA1 and dsRNA2 are separately encapsidated
Replication	Cytoplasmic. Genomic RNA acts as a template for mRNA synthesis within the virus particle; transcription occurs by a semiconservative mechanism
Translation	From monocistronic positive-sense transcripts of both genomic dsRNAs
Host range	Plants, fungi and protozoa
Taxonomy	Five genera, including >40 species, and 15 species unassigned to a genus