Fig. 2
Molecular phylogenetic analysis of Dirofilaria immitis isolate and other Onchocercidae species based on cox1 sequences. Phylogenetic tree was inferred by Maximum Likelihood method with the highest log likelihood (− 2530.6048) based on the Kimura 2-parameter model [20]. Bootstrap values calculated from 1000 trees. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site. Evolutionary analyses were conducted in MEGA6 [21]