|Group:||Group II (ssDNA)|
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.
- 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