Notes on Family: Barnaviridae
This family currently consists of the single genus Barnavirus
virus). It contains the only known ssRNA virus that infects fungi.
Virions are bacilliform, not enveloped, about 18-20 nm in diameter and 48-53 nm long. There are no obvious surface projections. The virions contain about 20 % nucleic acid.
Monopartite, linear, single stranded, positive sense RNA of about 4kb. The 3' terminus has no poly(A) tract and there appears to be no cap at the 5' terminus.
Genera in the Family
There is currently only one genus: