Figure 3. Phylogenetic analysis of VP4 gene nucleotide sequences of Group A rotavirus strains from Korea between 2000 and 2004. Phylogenetic trees of alignment were constructed using the neighbor-joining method by bootstrapping with 1000 replicates, and phylogenetic distances were measured by Tajima-Nei model. Only values > 50% are given. Numbers at nodes indicate the level of bootstrap support (%). Bar represents 0.05 substitutions per nucleotide position.
