Polytene chromosomes normal.
Mutation in downstream control region.
Does not affect the frequency of the trx bithorax-variegated phenotype in heterozygous combination with Df(3R)red-P52.
Haltere are transformed to wing and are 15-20% of wing size, dorsal tissue of T3 is incompletely transformed to metanotum, hypopleural plates are incompletely transformed to sternopleural plates, 8-10 hypopleural bristles are still present and the anterior third leg displays a strong transformation to anterior second leg, as seen by the bristle pattern. Phenotype can be suppressed by su(Hw) mutations.
Kuhn.
Kuhn, 1983.