The feasibility of applying molecular phylogenetic methods of analysis to aligned coat-protein sequences and other molecular data derived from coat proteins or genomic sequences of members of the proposed taxonomic family of Potyviridae, is discussed. We show that comparative sequence analysis of whole coat-protein sequences may be used reliably to differentiate between sequences of closely related strains, and to show groupings of more distantly related viruses; that coat proteins of putative Potyviridae cluster according to the proposed generic divisions, and, even if some are only very distantly related, the members of the family form a cluster distinct from coat proteins of other filamentous and rod-shaped viruses. Taxonomic revisions based on perceived evolutionary relationships, and the lack of feasibility of erecting higher taxa for these viruses, are discussed.
CITATION STYLE
Rybicki, E. P., & Shukla, D. D. (1992). Coat protein phylogeny and systematics of potyviruses. Archives of Virology. Supplementum, 5, 139–170. https://doi.org/10.1007/978-3-7091-6920-9_13
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