bacteriophage information
Answers
Explanation:
Bacteriophages occur abundantly in the biosphere, with different genomes, and lifestyles. Phages are classified by the International Committee on Taxonomy of Viruses (ICTV) according to morphology and nucleic acid.
Nineteen families are currently recognized by the ICTV that infect bacteria and archaea. Of these, only two families have RNA genomes, and only five families are surrounded by an envelope. Of the viral families with DNA genomes, only two have single-stranded genomes. Eight of the viral families with DNA genomes have circular genomes, while nine have linear genomes. Nine families infect bacteria only, nine infect archaea only, and one (Tectiviridae) infects both bacteria and archaea.
ICTV classification of prokaryotic (bacterial and archaeal) viruses[1]OrderFamilyMorphologyNucleic acidExamplesCaudoviralesAckermannviridaeNonenveloped, contractile tailLinear dsDNAMyoviridaeNonenveloped, contractile tailLinear dsDNAT4, Mu, P1, P2SiphoviridaeNonenveloped, noncontractile tail (long)Linear dsDNAλ, T5, HK97, N15PodoviridaeNonenveloped, noncontractile tail (short)Linear dsDNAT7, T3, Φ29, P22LigamenviralesLipothrixviridaeEnveloped, rod-shapedLinear dsDNAAcidianus filamentous virus 1RudiviridaeNonenveloped, rod-shapedLinear dsDNASulfolobus islandicus rod-shaped virus 1UnassignedAmpullaviridaeEnveloped, bottle-shapedLinear dsDNABicaudaviridaeNonenveloped, lemon-shapedCircular dsDNAClavaviridaeNonenveloped, rod-shapedCircular dsDNACorticoviridaeNonenveloped, isometricCircular dsDNAPM2CystoviridaeEnveloped, sphericalSegmented dsRNAFuselloviridaeNonenveloped, lemon-shapedCircular dsDNAGlobuloviridaeEnveloped, isometricLinear dsDNAGuttaviridaeNonenveloped, ovoidCircular dsDNAInoviridaeNonenveloped, filamentousCircular ssDNAM13LeviviridaeNonenveloped, isometricLinear ssRNAMS2, QβMicroviridaeNonenveloped, isometricCircular ssDNAΦX174PlasmaviridaeEnveloped, pleomorphicCircular dsDNAPleolipoviridaeEnveloped, pleomorphicCircular ssDNA, circular dsDNA, or linear dsDNAPortogloboviridaeEnveloped, isometricCircular dsDNASphaerolipoviridaeEnveloped, isometricLinear dsDNASpiraviridaeNonnveloped, rod-shapedCircular ssDNATectiviridaeNonenveloped, isometricLinear dsDNATristromaviridaeEnveloped, rod-shapedLinear dsDNATurriviridaeEnveloped, isometricLinear dsDNA
It has been suggested that members of Picobirnaviridae infect bacteria, but not mammals