Fig. 3.

Phylogenetic analysis based on partial VP4 genes. The tree was constructed by using the neighbor-joining method with bootstrap analysis of 1000 replicates in MEGA 6.0. Bootstrap values estimated with 1000 replicate data sets were indicated at each node. The scale bar indicates the number of nucleotide substitutions per site. The sequences displayed in red, blue, yellow and black fonts are from this study, RotaTeq vaccine (G1P[5], G2P[5], G3P[5], G4P[5] and G6P[8]), LLR vaccine (G10P[15]), and other reference sequences downloaded from GenBank, respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)