Mu 1962, André Lwoff, Robert Horne, naPaul Tournier vakava vekutanga kugadzira nzira yekusiyanisa hutachiona, zvichibva paLinnaean hierarchical system. Iyi sisitimu yakavakirwa pa phylum, kirasi, kurongeka, mhuri, genus, uye mhando. Utachiona hwakakamurwa zvichienderana nehunhu hwavakagovana (kwete iwo emuenzi wavo) uye mhando ye nucleic acid inoumba majenomu avo. Muna 1966, International Committee on Taxonomy of Viruses (ICTV) yakaumbwa. Sisitimu yakatsanangurwa naLwoff, Horne naTournier haina kumbobvumidzwa zvizere neICTV nekuti saizi diki yejenomu uye yavo yakakwira mwero wekushanduka kunoita kuti zvive zvakaoma kuona madzitateguru avo. Sezvo kurongeka kwechinyakare kwakadaro kunoshandiswa kuwedzera kuhurongwa hwehutachiona. Mubvunzo: Ndeapi mavara uye mapoka akavakirwa?
zvakafanana