Family: Marnaviridae

Genus: Marnavirus

 

Distinguishing features

Members of the genus form a separate clade from other members of the family upon phylogenetic analysis of RNA-directed RNA polymerase amino acid sequences. 

Virion

See discussion under family description

Genome organization and replication

The genome is mono-cistronic. See discussion under family description

Biology

See discussion under family description

Species demarcation criteria

There is only one species in the genus.The phylogenetic relationship of one classified virus isolate and numerous unclassified viruses is shown in Figure 1 Marnavirus

Figure 1 Marnavirus Maximum likelihood tree of marnavirus RdRP amino sequences. The tree was produced using the JTT model with a gamma distribution of frequencies and invariant sites. Bootstrap values are shown where they were over 70%. Tips are labelled with filled circles for members of species; open circles represent unclassified viruses. Aurantiochytrium single-stranded RNA virus 01 (AB193726) was used as an outgroup. This phylogenetic tree and corresponding sequence alignment are available to download from the Resources page

Member species

The Member Species table enumerating important virus exemplars classified under each species of the genus is provided at the bottom of the page.

 

Related, unclassified viruses

Virus nameAccession number
Beihai picorna-like virus 57 strain BHHQ57630KX883356
Beihai picorna-like virus 57 strain BHJP51916KX883380
Changjiang picorna-like virus 2KX884547
Hubei picorna-like virus 7 strain WHSF7327KX884284
Hubei picorna-like virus 7 strain WHCC111241KX884268
N OV 137KY130494
Q sR OV 020KY286100
Q sR OV 041KY286101
Sanxia atyid shrimp virus 2 strain WHCCII13331KX884278
Sanxia atyid shrimp virus 2 strain SXXX37884KX883708
Wenzhou picorna-like virus 13KX884360

Virus names and virus abbreviations are not official ICTV designations.