In dppTgR46.1/Df(2L)DTD2, dppSal20 flies the ventral head is disrupted, the eye is round rather than oval, the sensory vibrissae on the ventral side of the eye are bunched, the maxillary palps are missing, reduced or duplicated, and gena tissue appears to be missing.
dppTgR46.1/Df(2L)DTD2, dppSal20 flies show head capsule defects. The sensory vibrissae on the ventral side of the head are disrupted, with vibrissae missing at the posterior end, and bunched or duplicated at the anterior end. The maxillary palps are either missing, reduced or are sometimes duplicated. In extreme cases, both the anterior rostral membrane and gena tissue are greatly diminished. The eyes are round instead of oval and are small due to a small, but statistically significant reduction in ommatidia number.
Third star imaginal discs appear normal in size and shape in dppTgR46.1/Df(2L)DTD2, dppSal20 larvae.
Third star dppTgR46.1/Df(2L)DTD2, dppSal20 eye-antennal discs show increased cell death, particularly in the disc proper.
Embryos carrying two copies of dppSal20 produce approximately twice the normal number of amnioserosa cells. This phenotype is not altered if the embryos are also carrying two copies of tsgtwi.PM.
Covers functions mediated by the dppHin and dppshv region.
dpp sequences remaining in this allele are sufficient for rescue the larval lethality of dpp null alleles.