| two triatoma dimidiata clades (chagas disease vector) associated with different habitats in southern mexico and central america. | triatoma dimidiata is the only reported chagas disease vector in campeche, mexico. the purpose of this study was to determine the genetic variability of vectors from campeche coastal and rain forest areas and establish a phylogenetic relationship with other t. dimidiata populations by analyzing the internal transcribed spacer-2 (its-2) region. the sequence length of samples from campeche ranged from 469 to 478 basepairs. the its-2 variability among the populations enabled us to classify them int ... | 2008 | 18337346 |