ICTV Virus Taxonomy Profile: Endornaviridae

Area of Science:

• Virology
• Molecular Biology

Background:

• The Endornaviridae family comprises viruses with linear, single-stranded, positive-sense RNA genomes.
• These viruses infect a diverse range of hosts, including plants, fungi, and oomycetes.

Purpose of the Study:

• To summarize the International Committee on Taxonomy of Viruses (ICTV) report on the family Endornaviridae.
• To outline the classification criteria for viruses within this family.

Main Methods:

• Review and summarization of the official ICTV report.
• Analysis of viral genome characteristics (size, strandedness, sense).
• Assessment of host range and domain presence for classification.

Main Results:

• The Endornaviridae family includes viruses with genome sizes ranging from 9.7 to 17.6 kb.
• Two genera are recognized: Alphaendornavirus (infecting plants, fungi, oomycetes) and Betaendornavirus (infecting ascomycete fungi).
• Classification is based on genome size, host, and unique domain presence.

Conclusions:

• The Endornaviridae family is a distinct viral group with specific genomic and host characteristics.
• The established classification system provides a framework for understanding viral diversity within the family.