Genus: Kusarnavirus

Genus: Kusarnavirus

Distinguishing features

The member of the genus forms 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 di-cistronic (Figure 2.Marnaviridae). 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 virus isolates is shown in Figure 1.Kuarnavirus.

Figure 1.Kuarnavirus. Maximum likelihood tree of kusarnavirus 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. Heterosigma akashiwo RNA virus (AY337486) was used as an outgroup. This phylogenetic tree and corresponding sequence alignment are available to download from the Resources page.

 Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
AstarnavirusAsterionellopsis glacialis RNA virusAg1aRNAVAB973945NC_024489Complete genomeAglaRNAV

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.

Related, unclassified viruses

Virus name

Accession number

Beihai mollusks virus 1 strain WZSLuoI86140

KX884377

Beihai mollusks virus 1 strain BHNXC41338

KX883395

Beihai mollusks virus 1 strain BHXG26682

KX884472

Beihai mollusks virus 1 strain BHHK131425

KX883351

Beihai mollusks virus 1 strain YYSZX17807

KX884391

Beihai mollusks virus 1 strain BHZY60617

KX884509

Beihai mollusks virus 1 strain BWBFG40783

KX884528

Beihai mollusks virus 2 strain BHZY60889

KX884518

Beihai mollusks virus 2 strain WZSLuoI86113

KX884375

Beihai mollusks virus 2 strain BHZC37403

KX884502

Beihai picorna-like virus 31

KX884499

Beihai picorna-like virus 32 strain BHNXC41402

KX883397

Beihai picorna-like virus 32 strain BHZC37269

KX884485

Beihai picorna-like virus 33

KX884530

Beihai picorna-like virus 34

KX883902

Beihai picorna-like virus 35 strain BHZC37213

KX884483

Beihai picorna-like virus 35 strain YYSZX17573

KX884388

Beihai picorna-like virus 35 strain HWRTX12817

KX883907

Beihai picorna-like virus 35 strain SCJXSX39018

KX883960

Beihai picorna-like virus 35 strain BHTSS17888

KX883420

Beihai picorna-like virus 35 strain BHWZXX15273

KX883425

Beihai picorna-like virus 35 strain BHTH15623

KX883412

Beihai picorna-like virus 35 strain BHNXC40527

KX883386

Beihai picorna-like virus 35 strain BHHK128006

KX883345

Beihai picorna-like virus 35 strain BHBJDX17224

KX883323

Beihai picorna-like virus 35 strain BZL82652

KX884534

Beihai picorna-like virus 35 strain BHXG26244

KX884467

Beihai picorna-like virus 35 strain BHJJX23572

KX883363

Beihai sipunculid worm virus 2

KX883404

Beihai sipunculid worm virus 3 strain BHNXC41487

KX883406

Beihai sipunculid worm virus 3 strain BHZC37455

KX884501

Beihai sipunculid worm virus 4 strain BHNXC41347

KX883396

Beihai sipunculid worm virus 4 strain BHBJDX17813

KX883325

Beihai sipunculid worm virus 4 strain BHZC37368

KX884491

Delisea pulchra RNA virus

KT455464

Wenzhou picorna-like virus 9

KX884359

Wenzhou picorna-like virus 10 strain WZRBX43164

KX884346

Wenzhou picorna-like virus 10 strain WZSLuoI86114

KX884376

Virus names and virus abbreviations are not official ICTV designations.