Figure 3.
Phylogenetic analysis based on the partial 3C3CPro (549 nucleotides). The nucleotide sequences were analyzed using a MEGA5.0 package. Four topologies were inferred by Neighbor-joining cluster analysis with the bootstrap option. The numbers at the branching points are bootstrap values estimated with 1,000 pseudo-replicate data. Four genotypes (G I-IV) are indicated. The last numbers of each strain name indicate the year of isolation. The locations are shown to the right of the strain name.