title: Classification of several tobamoviruses isolated in China on the basis of the amino acid composition of their virion proteins.
abstract: The amino acid compositions of the virion proteins of several tobamoviruses isolated in China were determined. A classification computed from these and published data of other tobamoviruses was compared with published data of their relatedness assessed using the cDNA:RNA molecular hybridization technique. The classifications are clearly congruent; that based on amino acid composition appears to be best for determining the hierarchical relationships of members within a taxonomic group, rather than for distinguishing between closely related members, whereas nucleic acid hybridization unequivocally places a virus into the appropriate subgroup but is less useful for determining distant relationships.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002213:Capsid / Q000032:analysis; D002681:China; D009029:Mosaic Viruses / Q000032:analysis / Q000145:classification*; D009693:Nucleic Acid Hybridization; D012367:RNA, Viral / Q000032:analysis; D013045:Species Specificity; D014027:Tobacco Mosaic Virus / Q000032:analysis / Q000145:classification*
chemical_list: D000596:Amino Acids; D012367:RNA, Viral