Family: Sinhaliviridae (Interim Report)

This is a summary page created by the ICTV Report Editors using information from associated Taxonomic Proposals and the Master Species List.

Edited by: Jens H. Kuhn
Posted: November 2024, updated December 2024

Summary

The family Sinhaliviridae includes ssRNA(+) viruses of invertebrates (Table 1 Sinhaliviridae). The family Sinhaliviridae was established in 2020 (Master Species List #35).

Table 1 Sinhaliviridae. Characteristics of members of the family Sinhaliviridae.

Characteristic	Description
Example	Lake Sinai virus 1 (HQ871931), species Lake Sinai virus 1, genus Sinaivirus
Virion	Icosahedral, 30 nm diameter (Figure 1 Sinhaliviridae)
Genome	ssRNA(+), 1 linear segment, 5.9–6.0 kb (Figure 2 Sinhaliviridae)
Replication	Cytoplasmic, genome-length dsRNA is transcribed/replicated
Translation	Capped genome RNA is translated
Host range	Invertebrates
Taxonomy	Realm Riboviria, kingdom Orthornavirae, phylum Kitrinoviricota, class Magsaviricetes, order Nodamuvirales: 1 genus, 2 species (Figure 3 Sinhaliviridae)

Figure 1 Sinhaliviridae. (Left) Electron micrograph of negatively-stained Lake Sinai virus 2 capsid protein self-assembly in vitro. Scale bar: 100 nm. Image from Chen et al. (2023) "Structures of honeybee-infecting Lake Sinai virus reveal domain functions and capsid assembly with dynamic motions." Nat Commun 14:545 under a Creative Commons Attribution 4.0 International License. (Right) Schematic of virion. Image from ViralZone under a Creative Commons Attribution 4.0 International License, credit: SwissBioPics.

Figure 2 Sinhaliviridae. Genome organisation of Lake Sinai virus 1, a member of the family Sinhaliviridae. Boxes indicate open reading frames as annotated on GenBank accession HQ871931.

Figure 3 Sinhaliviridae. Relationships of the taxa connected to the family Sinhaliviridae.

Derivation of names

Sinhaliviridae: from Sinaivirus, a defunct name for a member of the family and Halictivirus, an unclassified, closely related virus; the suffix -viridae for family taxa

Sinaivirus: from Sinaivirus, a defunct name for a member of the family