Fig. 1From: Molecular detection of Dirofilaria spp. and host blood-meal identification in the Simulium turgaicum complex (Diptera: Simuliidae) in the Aras River Basin, northwestern IranMaximum likelihood tree showing the relationships between the 18S rDNA-ITS1 sequences obtained in this study (solid circles) and other filarial nematodes retrieved from GenBank. Thelazia lacrymalis was designated as outgroup. The numbers at the branch points are bootstrap values based on 1000 replicates. Bootstrap values less than 50% are hidden. The scale-bar measures evolutionary distance in substitutions per nucleotideBack to article page