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Virus classification
Group: Group II (ssDNA)
Order: Unassigned
Family: Bacillariodnaviridae


Bacillariodnaviridae is a family of single straned DNA viruses that infect diatoms.[1] The family has only a single genus at present - Bacillariodnavirus


The genome of these viruses appears to be unique. It consists of a single molecule of covalently closed circular single stranded DNA of ~6 kilobases as well as a segment of linear ssDNA of ~1 kilobase. The linear segment is complementary to a portion of the closed circle creating a partially double stranded region.

There are at least three major open reading frames: one of these has a high similarity to replicase related proteins of the other ssDNA viruses.


There is only one genus in this family at present.


  1. ^ Tomaru Y, Takao Y, Suzuki H, Nagumo T, Koike K, Nagasaki K (2011) Isolation and characterization of a single-stranded DNA virus infecting Chaetoceros lorenzianus Grunow. Appl Environ Microbiol 77(15):5285-5293