Fig. 4From: Prevalence and molecular characterization of Dirofilaria immitis in road killed canids of northern IranPhylogenetic tree of Cox1 gene sequences of the Dirofilaria immitis obtained in this study (▲) and reference sequences retrieved from the GenBank. The tree was constructed based on the maximum likelihood method and the Tamura 3-parameter model in MEGA6. Ascaris lumbricoides sequence was used as the out group. Bootstrap values lower than 50 were omittedBack to article page