Resources: Apasviridae

Sequence alignments and tree files:

None currently associated with this report. 

References: Apasviridae

Baquero, D., Liu, Y., Wang, F., Egelman, E., Prangishvili, D. & Krupovic, M. (2020). Structure and assembly of archaeal viruses. Adv Virus Res 108, 127-164. [PubMed]

Citation: Apasviridae

A summary of this ICTV Report chapter will be published as an ICTV Virus Taxonomy Profile article in the Journal of General Virology, and should be cited when referencing this online chapter as follows:

Apoorva Prabhu and Christian Rinke (2026), ICTV Virus Taxonomy Profile: Apasviridae, Journal of General Virology, (in press)

Authors: Apasviridae

Apoorva Prabhu*
School of Chemistry and Molecular Biosciences
The University of Queensland
Brisbane
Australia
E-mail: [email protected]

Christian Rinke
Department of Microbiology
University of Innsbruck
Innsbruck
Austria
E-mail: [email protected]

* to whom correspondence should be addressed

Family: Apasviridae

Genus: Agnivirus

Distinguishing features

There is only one genus in the family.

Demarcation criteria for taxa within the genus

There is only one species in the genus. Viruses belonging to additional species would be expected to have genome sequence identities of <95%, following the demarcation criterion of other archaeal viruses within the class Caudoviricetes.

Family: Apasviridae

Apoorva Prabhu and Christian Rinke

The citation for this ICTV Report chapter is the summary to be published as Prabhu, A and Rinke, C. ICTV Virus Taxonomy Profile: Apasviridae 2026, Journal of General Virology, (in press)

Corresponding author: Apoorva Prabhu ([email protected])
Edited by: Mart Krupovic and Evelien Adriaenssens
Posted: January 2026

Apasviridae Table of Contents

Resources: Nipumfusiviridae

Sequence alignments and tree files:

Figure 3 Nipumfusiviridae

Tree file (Newick format)

Species List: Nipumfusiviridae

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

References: Nipumfusiviridae

Baquero, D. P., Liu, Y., Wang, F., Egelman, E. H., Prangishvili, D. & Krupovic, M. (2020). Structure and assembly of archaeal viruses. Adv Virus Res 108, 127-164. [PubMed]