Figure 2: Phylogenetic analysis of the amino acid sequences of 17 new VP1 sequences from different provinces in China and all 8 relevant sequences (6 from complete genomes, one from complete CDS, and one from partial CDS) currently available in GenBank.

Sequences in this study (black closed triangles) were named as previously mentioned. Sequences from GenBank were given the country name followed by accession number. The percentages of replicate trees in which the associated taxa are clustered together in the bootstrap test (1000 replicates) are shown next to the branches. The three major groups were identified as I, II, and III.