Classification System: ICTV (2023 Release, MSL#39, release v3)
(Unranked): Virus
Group II: ssDNA
Ordo: -
Familia: Bacilladnaviridae
Genera: Diatodnavirus – Kieseladnavirus – Protobacilladnavirus
Name
Bacilladnaviridae
References
ICTV Virus Taxonomy 2017
Bacilladnaviridae is a family of single-stranded DNA viruses that primarily infect diatoms.[1][2]
Characteristics
Genome map of species Chaetoceros protobacilladnavirus 2 of family Bacilladnaviridae
Similar to other eukaryotic ssDNA viruses, bacilladnaviruses are likely to replicate their genomes by the rolling-circle mechanism, initiated by the virus-encoded endonuclease (Rep). However, the latter protein of bacilladnaviruses displays unique conserved motifs and in phylogenetic trees forms a monophyletic clade separated from other groups of ssDNA viruses. The capsid protein of bacilladnaviruses has the jelly-roll fold and is most closely related to the corresponding proteins from members of the family Nodaviridae, which have ssRNA genomes.[3] [4]
Taxonomy
The following genera are recognized:[5]
Diatodnavirus
Kieseladnavirus
Protobacilladnavirus
References
"Virus Taxonomy: 2019 Release". talk.ictvonline.org. International Committee on Taxonomy of Viruses. Retrieved 25 April 2020.
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". Applied and Environmental Microbiology. 77 (15): 5285–5293. Bibcode:2011ApEnM..77.5285T. doi:10.1128/AEM.00202-11. PMC 3147440. PMID 21666026.
Kazlauskas, D; Dayaram, A; Kraberger, S; Goldstein, S; Varsani, A; Krupovic, M (2017). "Evolutionary history of ssDNA bacilladnaviruses features horizontal acquisition of the capsid gene from ssRNA nodaviruses". Virology. 504: 114–121. doi:10.1016/j.virol.2017.02.001. PMID 28189969.
Munke, A; Kimura, K; Tomaru, Y; Wang, H; Yoshida, K; Mito, S; Hongo, Y; Okamoto, K (20 July 2022). "Primordial Capsid and Spooled ssDNA Genome Structures Unravel Ancestral Events of Eukaryotic Viruses". mBio. 13 (4): e0015622. doi:10.1128/mbio.00156-22. PMC 9426455. PMID 35856561.
"Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 11 May 2021.
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