Deletion of a portion of the first exon and 5' flanking sequences.
apttdf-PΔ4 wing disc clones lead to formation of small adult wings with blisters, as compared to controls.
Adult wings of apttdf-PΔ4/+ mutants appear normal.
Heterozygous flies show a dramatic reduction in ethanol sedation sensitivity compared to wild type.
Stereotypic outgrowth of tracheal branches is severely disrupted in mutant embryos. Mutants show variable tracheal defects.
apttdf-PΔ4/apt[+], hh2 has visible phenotype
apttdf-PΔ4/apt[+], hh2 has abnormal size | adult stage phenotype
apttdf-PΔ4/apt[+], hh2 has wing phenotype
apttdf-PΔ4/apt[+], hh2 has crossvein | ectopic phenotype
apttdf-PΔ4, bru1QB has embryonic head phenotype
apttdf-PΔ4, bru1QB, nanosL7 has embryonic head phenotype
hh2/+, apttdf-PΔ4/+ double mutant adults exhibit smaller wings with an ectopic crossvein, as compared to controls.
Embryos derived from a cross of wild-type males to females heterozygous for aretQB and also heterozygous for apttdf-PΔ4 occasionally have head defects (these defects are not seen in embryos derived from females singly heterozygous for aretQB or apttdf-PΔ4). This phenotype is largely suppressed if the females are also heterozygous for nosL7.