Family: Marnaviridae
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.
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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
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 name |
Accession number |
Beihai mollusks virus 1 strain WZSLuoI86140 |
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Beihai mollusks virus 1 strain BHNXC41338 |
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Beihai mollusks virus 1 strain BHXG26682 |
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Beihai mollusks virus 1 strain BHHK131425 |
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Beihai mollusks virus 1 strain YYSZX17807 |
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Beihai mollusks virus 1 strain BHZY60617 |
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Beihai mollusks virus 1 strain BWBFG40783 |
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Beihai mollusks virus 2 strain BHZY60889 |
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Beihai mollusks virus 2 strain WZSLuoI86113 |
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Beihai mollusks virus 2 strain BHZC37403 |
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Beihai picorna-like virus 31 |
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Beihai picorna-like virus 32 strain BHNXC41402 |
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Beihai picorna-like virus 32 strain BHZC37269 |
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Beihai picorna-like virus 33 |
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Beihai picorna-like virus 34 |
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Beihai picorna-like virus 35 strain BHZC37213 |
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Beihai picorna-like virus 35 strain YYSZX17573 |
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Beihai picorna-like virus 35 strain HWRTX12817 |
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Beihai picorna-like virus 35 strain SCJXSX39018 |
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Beihai picorna-like virus 35 strain BHTSS17888 |
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Beihai picorna-like virus 35 strain BHWZXX15273 |
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Beihai picorna-like virus 35 strain BHTH15623 |
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Beihai picorna-like virus 35 strain BHNXC40527 |
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Beihai picorna-like virus 35 strain BHHK128006 |
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Beihai picorna-like virus 35 strain BHBJDX17224 |
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Beihai picorna-like virus 35 strain BZL82652 |
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Beihai picorna-like virus 35 strain BHXG26244 |
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Beihai picorna-like virus 35 strain BHJJX23572 |
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Beihai sipunculid worm virus 2 |
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Beihai sipunculid worm virus 3 strain BHNXC41487 |
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Beihai sipunculid worm virus 3 strain BHZC37455 |
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Beihai sipunculid worm virus 4 strain BHNXC41347 |
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Beihai sipunculid worm virus 4 strain BHBJDX17813 |
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Beihai sipunculid worm virus 4 strain BHZC37368 |
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Delisea pulchra RNA virus |
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Wenzhou picorna-like virus 9 |
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Wenzhou picorna-like virus 10 strain WZRBX43164 |
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Wenzhou picorna-like virus 10 strain WZSLuoI86114 |
Virus names and virus abbreviations are not official ICTV designations.