title: Suggestions for the classification and nomenclature of helical plant viruses.
abstract: Helical plant viruses are arranged into four families: Flexiviridae, Tobamoviridae, Hordeiviridae, and Tobraviridae. Further division of these families into genera and subgenera is shown. A family-specific, constant amount of RNA per unit virion length and a distinct radial location of RNA from the center of the helix are considered as basic criteria for establishment of these families.
mesh_terms: D008970:Molecular Weight; D010942:Plant Viruses / Q000032:analysis / Q000145:classification* / Q000648:ultrastructure; D012328:RNA Viruses; D012367:RNA, Viral / Q000032:analysis; D009626:Terminology as Topic
chemical_list: D012367:RNA, Viral