Sequence analysis of the spliced-leader intergenic region (SL-IR) and random amplified polymorphic DNA (RAPD) of Trypanosoma rangeli strains isolated from Rhodnius ecuadoriensis, R. colombiensis, R. pallescens and R. prolixus suggests a degree of co-evolu

► Strains of T. rangeli isolated from the same vector species presented the same genotypes. ► Association between the T. rangeli genotypes and its vectors was observed. ► Dendrograms from the SL-IR sequences and RAPD showed the same topology.