TAHRE elements in the D. melanogaster species subgroup. (A) Dot-matrix comparisons of the nucleotide sequence of each TAHRE (Dsec\TAHRE scaffold 182, 15703-7717; Dyak\TAHRE and Dere\TAHRE are listed in Supplemental Fig. S12) with its corresponding HeT-A (Dsec\HeT-A scaffold 182, 7716-2747; Dyak\HeT-A AF043258; Dere\HeT-A scaffold 4836, 38316–32346). The three-frame ORF maps of TAHRE elements are indicated (the tall tick marks correspond to stop codons; the short tick marks correspond to methionines; the ORFs are the long stretches without tall tick marks). (B) Diagram of scaffold 182 from D. sechellia. The color code for the TRs is indicated in the box below. (C) FISH of TAHRE-ORF2 probes to polytene chromosomes of D. simulans and D. yakuba. Hybridization signals are shown in green on the chromosomes counterstained with DAPI (blue).
