title: A summary of potyvirus taxonomy and definitions.
abstract: The current taxonomic status of the family Potyviridae is presented with suggestions for resolving some taxonomic problems. Terms such as strain, pathotype, serotype, variant, mutant, and isolate are discussed in relation to the family.
authors.affiliation: Department of Plant Pathology and Physiology, Clemson University, South Carolina.
authors.forename: O W
authors.initials: OW
authors.lastname: Barnett
mesh_terms: D010942:Plant Viruses / Q000145:classification*; D012328:RNA Viruses / Q000145:classification*; D009626:Terminology as Topic