{{Short description|Subfamily of viruses}} {{Virusbox | taxon = Picovirinae | synonyms = * Nanovirinae | synonyms_ref = <ref>{{cite journal|title=Unifying classical and molecular taxonomic classification: analysis of the Podoviridae using BLASTP-based tools |last=Lavigne |first=R. |last2=Seto |first2=D. |last3=Mahadevan |first3=P. |last4=Ackermann |first4=H. W. |last5=Kropinki |first5=A. M. |journal=Research in Microbiology |volume=159 |issue=5 |year=2008 |pages=406–14 |pmid=18555669 |doi=10.1016/j.resmic.2008.03.005|doi-access=free }}</ref> }}

'''''Picovirinae''''' is a subfamily of viruses in the order ''Caudovirales'', in the family ''Salasmaviridae''. Bacteria serve as natural hosts. There are two genera and seven species in this subfamily.<ref name=ViralZone>{{cite web|title=Viral Zone|url=https://viralzone.expasy.org/all_by_species/712.html|publisher=ExPASy|accessdate=1 July 2015}}</ref><ref name=ICTV>{{cite web |title=Virus Taxonomy: 2020 Release |url=https://ictv.global/taxonomy |publisher=International Committee on Taxonomy of Viruses (ICTV) |date=March 2021 |access-date=12 May 2021}}</ref>

==Taxonomy== The following genera and species are recognized:<ref name=ICTV /> *''Beecentumtrevirus'' **''Bacillus phage Nf'' **''Bacillus virus B103'' **''Bacillus virus Goe1'' *''Salasvirus'' **''Bacillus virus Goe6'' **''Bacillus virus Gxv1'' **''Bacillus virus phi29'' **''Bacillus virus PZA''

==Structure== Viruses in ''Picovirinae'' are non-enveloped, with icosahedral or prolate heads of about 50–55&nbsp;nm in diameter, and short tails. Genomes are linear, double stranded DNA, and are relatively small (between 16–20 kbp)-hence the term pico-virinae. Picoviruses package linear, monomeric genomes with a terminal protein covalently attached to each end.<ref name=ViralZone/>

==Life cycle== Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. Replication follows the DNA strand displacement model. DNA-templated transcription is the method of transcription. Bacteria serve as the natural host. Transmission routes are passive diffusion.<ref name=ViralZone/>

==References== {{Reflist|2}}

==External links== * [https://viralzone.expasy.org/all_by_species/712.html '''Viralzone''': Picovirinae] * [http://ictvonline.org/virusTaxonomy.asp '''ICTV''']

{{Baltimore classification}} {{Taxonbar|from=Q7191071}}

Category:Picovirinae Category:Virus subfamilies