Fig. 2. Expression of btd (blue), hth (green) and Dll
(red) in leg (A-C) and antennal (D-F) imaginal discs. (A) Triple staining for
three genes. (B) btd and Dll. (C) btd and
hth. Notice that the btd domain overlaps partially with
those of Dll and hth, indicating that it is expressed both
in the proximal and the distal leg domain. The arrow indicates the ventral
region where btd and hth overlap. (D) Triple label. (E)
btd and Dll. (F) btd and hth.