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Bidnaviridae

Bidnaviridae is a family of single stranded DNA viruses. Members of this family infect invertebrates. These viruses were once considered members of the family Parvoviridae (subfamily Densovirinae) their genomes differ greatly from those viruses in size and coding strategy. Because of this they have been classified into a family of their own.[1]

Virology[edit source | edit]

This family uniquely among ssDNA viruses in having a bipartite genome.

The virons are icosahedral, not enveloped and ~25 nanometers in diameter. There are two structural proteins in the viron.

The genome consists of two linear ssDNA segments of ~6 and 6.5 kilobases (kb) that are packaged separately. The complementary strands are also packaged giving rise to 4 distinct types of full particles. The total genome length is ~13 kb while that the parvoviruses is 4–6 kb.

Taxonomy[edit source | edit]

Only one genus in this family is currently recognised - Bidensovirus.

References[edit source | edit]

  1. ^ Virus Taxonomy: Ninth Report of the International Committee on Taxonomy of Viruses (2011) ISBN 978-0123846846
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