FIG. 1.

Phylogenetic trees of eight segments of the ISA viruses generated by the Bayesian method. The analysis was performed with the coding region for every segment for the 17 viruses used in the present study. The insertion of 33 and 30 nt in segment 5 of isolates ISAV752_09 and ISAV3_89, respectively, was eliminated for the analysis, as was the HPR region from segment 6. Node consistence was determined by the PP value. Its values are indicated in the nodes of the tree. Chilean isolates are shown in boldface type.