Fig. 1.

Phylogenetic tree (phylogram) of 18S ribosomal RNA gene nucleotide sequences of seven isolates of B. hominis of Mazandaran Province (M), northern Iran, along with 103 isolates of B. hominis from Tehran (T), Baghmalek (B), Khoramabad (K), Ahvaz (A) and Khozestan (Kh), as well as Sub Types (ST) 1-7 (ST1-6) B. hominis registered at the GenBank. The tree was constructed by using the neighbor-joining method (NJ) with Tamura 3-parameter genetic distance model in molecular evolutionary genetics analysis (MEGA) version 4.0 software (Tamura et al. 2007). The accession number of each isolate has been writhed along with its name