Heat induced expression causes no abnormalities in antennal or leg structures.
Ectopic maxillary structures, cirri and mouth hooks, are detected in the labial and first thoracic segments after appropriate heat shock induction of P{hsDfd}. Head involution is also blocked, the ectopic external sensory organs appearing on the labial lobes are indistinguishable from those seen in other head involution-defective embryos.
Transforms thoracic segments toward a maxillary identity, as determined by the development of ectopic cirri and mouthooks.
Coexpression with abd-Ahs.PS suggests phenotypic suppression of Dfd by abd-A is dependent on gene dosage.
Maxillary palps are split into two segments.
Antibody staining reveals severe defects in es organs in thoracic segment 1 through to abdominal segment 7 and severe defects in dch3 organs in thoracic segment 2. Thoracic segment 3 was partially transformed to lch3. lch5 in abdominal segments 1 to 7 was abnormal.
Heat induced expression transforms parts of more posterior segments to maxillary identities, development of maxillary cirri and mouth hooks in labial and thoracic segments. Transformations do not occur in a Dfd mutant background.
Severe morphological transformations: defective head involution, partial transformation of many head and thoracic segments to a maxillary segment identity. Penetrance of the maxillary transformation phenotype is highest at cellular blastoderm and decreases at later stages and requires an endogenous copy of Dfd.
Dfdhs.PK, ssaSc has abnormal size | adult stage phenotype
Dfdhs.PK is a suppressor of embryonic epidermis phenotype of Abd-BM8, AntpNs-rvC3, ScrC1, UbxMX2, abd-AM1
Dfdhs.PK, cncB.hs has mouth hook | ectopic phenotype
Dfdhs.PK, cncA.hs has mouth hook | ectopic phenotype
Dfdhs.PK, ssaSc has tarsal segment phenotype
Dfdhs.PK, ssaSc has third segment of antenna phenotype
Induction of expression in ssaSc flies causes overgrowth of the third antennal segment and of proximal parts of the homeo tarsus. Legs exhibit enlargement of the proximal part of the tarsus.
McGinnis.
Kuziora and McGinnis.
Heat induced ectopic expression of Dfd activates endogenous Dfd.