Genus: Locarnavirus

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.

Figure 1.LocarnavirusMaximum 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

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Jericarnavirus BMarine RNA virus JP-BEF198242NC_009758Complete genomeJP-B
Sanfarnavirus 1Marine RNA virus SF-1JN661160NC_043515Complete coding genomeSF-1
Sanfarnavirus 2Marine RNA virus SF-2KF412901NC_043518Complete coding genomeSF-2
Sanfarnavirus 3Marine RNA virus SF-3SF-3KF478836NC_043519Complete coding genomeSF-3

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

Related, unclassified viruses

Virus name

Accession number

Beihai picorna-like virus 42

KX883963

Beihai picorna-like virus 43 strain BHBJDX18749

KX883335

Beihai picorna-like virus 43 strain BHJJX25682

KX883367

Beihai picorna-like virus 43 strain BHWZXX15634

KX883429

Beihai picorna-like virus 43 strain BHNXC41212

KX883390

Beihai picorna-like virus 43 strain SCJXSX39249

KX883962

Beihai picorna-like virus 44

KX884466

Beihai picorna-like virus 45

KX884496

Beihai picorna-like virus 46

KX884493

Beihai picorna-like virus 47

KX883965

Beihai picorna-like virus 48

KX884498

Beihai picorna-like virus 49

KX884480

Beihai picorna-like virus 58

KX883320

Beihai razor shell virus 1 strain BHZC37272

KX884486

Beihai razor shell virus 1 strain BHBei76693

KX883312

Beihai razor shell virus 1 strain BHBJDX18719

KX883333

Beihai razor shell virus 2 strain BHBei76898

KX883314

Beihai razor shell virus 2 strain BHZC37307

KX884488

Changjiang picorna-like virus 1

KX884546

Changjiang picorna-like virus 3

KX884542

Changjiang picorna-like virus 4

KX884543

Hubei leech virus 3

KX883727

Hubei leech virus 4 strain SZmix20870

KX883725

Hubei leech virus 4 strain CJLX30730

KX884556

Hubei picorna-like virus 2

KX884264

Hubei picorna-like virus 4

KX884265

Hubei picorna-like virus 5

KX884261

N OV 080

KY130491

Sanxia picorna-like virus 8

KX883720

Sanxia picorna-like virus 9

KX883717

Shahe picorna-like virus 4 strain SHWC0209c12741

KX883645

Shahe picorna-like virus 4 strain SHWC13603

KX883659

Shahe picorna-like virus 5

KX883656

Ubei picorna-like virus 3

KX884266

Wenzhou channeled applesnail virus 1

KX884329

Wenzhou picorna-like virus 12

KX884340

Wenzhou picorna-like virus 14

KX884382

Wenzhou picorna-like virus 15

KX884328

Wenzhou picorna-like virus 16

KX884342

Virus names and virus abbreviations are not official ICTV designations.