Neighbor-joining trees of clock genes. Neighbor-joining trees using the three clock gene nucleotide sequences of the two An. cruzii sibling species obtained with Jukes and Cantor distance for Clock gene, and Kimura 2-parameter distance for the others. Numbers on the nodes represent the percentage bootstrap values based on 1,000 replications. Flo: Florianópolis; Bah: Itaparica.