Family: Marnaviridae
Genus: Locarnavirus
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
Both mono- and di-cistronic genome organizations are found in the genus members (Figure 2. Marnaviridae). See discussion under family description.
Biology
See discussion under family description.
Species demarcation criteria
Species demarcation cut-offs are based on pairwise comparisons of the RdRP and capsid amino acid sequences. The cut-offs are 90% identity for the RdRP and 75% identity for the capsid. The phylogenetic relationship of classified virus isolates and numerous unclassified viruses is shown in Figure 1. Locarnavirus.
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Figure 1. Locarnavirus. Maximum likelihood tree of locarnavirus 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
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Virus name |
Accession number |
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Beihai picorna-like virus 42 |
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Beihai picorna-like virus 43 strain BHBJDX18749 |
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Beihai picorna-like virus 43 strain BHJJX25682 |
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Beihai picorna-like virus 43 strain BHWZXX15634 |
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Beihai picorna-like virus 43 strain BHNXC41212 |
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Beihai picorna-like virus 43 strain SCJXSX39249 |
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Beihai picorna-like virus 44 |
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Beihai picorna-like virus 45 |
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Beihai picorna-like virus 46 |
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Beihai picorna-like virus 47 |
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Beihai picorna-like virus 48 |
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Beihai picorna-like virus 49 |
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Beihai picorna-like virus 58 |
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Beihai razor shell virus 1 strain BHZC37272 |
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Beihai razor shell virus 1 strain BHBei76693 |
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Beihai razor shell virus 1 strain BHBJDX18719 |
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Beihai razor shell virus 2 strain BHBei76898 |
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Beihai razor shell virus 2 strain BHZC37307 |
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Changjiang picorna-like virus 1 |
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Changjiang picorna-like virus 3 |
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Changjiang picorna-like virus 4 |
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Hubei leech virus 3 |
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Hubei leech virus 4 strain SZmix20870 |
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Hubei leech virus 4 strain CJLX30730 |
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Hubei picorna-like virus 2 |
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Hubei picorna-like virus 4 |
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Hubei picorna-like virus 5 |
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N OV 080 |
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Sanxia picorna-like virus 8 |
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Sanxia picorna-like virus 9 |
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Shahe picorna-like virus 4 strain SHWC0209c12741 |
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Shahe picorna-like virus 4 strain SHWC13603 |
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Shahe picorna-like virus 5 |
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Ubei picorna-like virus 3 |
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Wenzhou channeled applesnail virus 1 |
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Wenzhou picorna-like virus 12 |
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Wenzhou picorna-like virus 14 |
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Wenzhou picorna-like virus 15 |
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Wenzhou picorna-like virus 16 |
Virus names and virus abbreviations are not official ICTV designations.