Sequence Variation in Toxoplasma gondii rop17 Gene among Strains from Different Hosts and Geographical Locations
Phylogenetic analysis of 13 Toxoplasma gondii strains based on analysis of the rop17 gene sequences. The tree was built by neighbor-joining (NJ), maximum likelihood (ML), and maximum parsimony (MP) analyses. The numbers at notes indicate bootstrap values resulting from different analyses in the order MP/NJ/ML. (a) The much higher genetic divergence in rop17 revealed two major clusters (denoted by I and II). (b) Subtree in the red box showing results of analysis using neighbor-joining (NJ).