| comparative sequence analysis of american, european and asian isolates of viruses in the genus coltivirus. | in this study, the basis for the classification of virus isolates grouped within the genus coltivirus, family reoviridae, is discussed. sequences of dsrna segments from american (segments 9-12), european (segment 12) and asian (segments 7-12) isolates were characterized and polythetic criteria were defined for their taxonomic classification. these criteria (including sequence analysis) permitted the different species to be distinguished and classified into two groups. in both groups, subgroups w ... | 1998 | 9780055 |