ICTV Virus Taxonomy Profile: Potyviridae 2022

Area of Science:

• Virology
• Plant Pathology
• Taxonomy

Background:

• The Potyviridae family includes plant viruses characterized by single-stranded, positive-sense RNA genomes (8-11 kb) and filamentous particles (650-950 nm length, 11-20 nm width).
• Genera within this family are differentiated based on host range, genomic characteristics, and phylogenetic relationships of their member viruses.
• While most Potyviridae genomes are monopartite, the Bymovirus genus exhibits bipartite genomes.

Purpose of the Study:

• To provide a comprehensive summary of the International Committee on Taxonomy of Viruses (ICTV) report on the family Potyviridae.
• To outline the key taxonomic features, genomic properties, and host interactions of viruses within the Potyviridae family.
• To highlight the significance of Potyviridae in causing plant disease epidemics.

Main Methods:

• This work is a summary of the official ICTV report on the Potyviridae family.
• Information is compiled from the ICTV's taxonomic data and scientific literature.
• Classification is based on established virological and phylogenetic criteria.

Main Results:

• Potyviridae viruses share common structural and genomic features but are diverse in host range and phylogeny.
• The Bymovirus genus is unique within the family for its bipartite genome structure.
• Several Potyviridae members are significant plant pathogens, responsible for major crop diseases.

Conclusions:

• The Potyviridae family represents a significant group of plant viruses with diverse characteristics and considerable agricultural impact.
• Accurate classification and understanding of Potyviridae are crucial for disease management and crop protection.
• The ICTV report provides an authoritative overview of the current state of knowledge on this viral family.