FIG 1.
Phylogenetic analysis of sicinivirus sequences based on the complete amino acid sequence of the 3Dpol protein. The evolutionary history was inferred using the maximum likelihood method based on the Jones-Taylor-Thornton matrix-based model in MEGA v7.0.26. The tree with the highest log likelihood (–3,357.96) is shown. The percentage of trees in which the associated taxa clustered together in the bootstrap test (1,000 replicates) is shown next to the branches. The initial tree(s) for the heuristic search was obtained automatically by applying the neighbor-join and BioNJ algorithms to a matrix of pairwise distances estimated using a JTT model and then selecting the topology with the superior log likelihood value. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. The analysis involved 23 amino acid sequences (the sequence of Gallivirus isolate NC_018400 is included as an outgroup). All positions containing gaps and missing data were eliminated. There was a total of 472 positions in the final data set. The samples used in this study are shown in red.