Fig. 2.
Genetic relationship of 23 T. gondii strains based on ROP5, ROP16, ROP18 and GRA15 PCR-RFLP polymorphisms. Ten, genotypes were identified among these strains. Mouse-virulent strains are in red boxes, intermediate virulent in green, and non-virulent, strains in blue. The number in the parenthesis is ToxoDB PCR-RFLP genotypes. T. gondii haplogroups are shown in the circle numbers, as designated previously (Su et al., 2012). Isolates TgWtdPa4, TgWtdPa5, TgFoxPa7, TgFoxPa8 and TgFoxPa9 are from current study. The result shows potential association of genotypes with virulence phenotype. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of the article.)