Fig. 2

Phylogenetic tree based on nucleotide sequences of the bg gene (a) and gdh gene (b) of G. duodenalis. Trees were constructed using the neighbor-joining method based on genetic distance calculated by the Kimura 2-parameter model, employed in MEGA version 5.2. Bootstrap values >50% from 1,000 replicates is shown on nodes. Isolates showed known and novel sequences obtained from this study are marked by rectangle (blue) and triangles (red), respectively