Polytene chromosomes normal.
adult thorax & microchaeta | ectopic | somatic clone
haltere & macrochaeta
head capsule & macrochaeta
mesothoracic tergum & macrochaeta | ectopic | conditional cs
microchaeta & mesothoracic tergum | supernumerary
microchaeta | ectopic & scutellum
scutellum & macrochaeta
wing & neuron & glial cell
wing hair & wing vein L2
wing vein & wing sensillum | ectopic | somatic clone
wing vein L2 & macrochaeta & adult
pad1 h1 double mutants raised at 25oC display ectopic bristles at positions on the notum where no ectopic bristles are found in either single mutant. These new positions include dorso-central bristles closer to the thoracic midline and additional bristles between the anterior and posterior scutellars. Ectopic bristles on the double mutant are mostly located in the posterior half of the notum, while ectopic bristles tend to be found in the anterior half in pad1 single mutants.
Df(1)ase-1; h1 double mutants have four-fold fewer bristles in the L2 vein than h1 mutants alone. Although h1 has no effect on the anterior wing margin bristles itself, the recurved bristles of Df(1)ase-1; h1 double mutants are more wild type than those of Df(1)ase-1, though the mutant phenotype of the stout mechanosensory bristles is more extreme.
Mohr, 11th Dec. 1918.