Deletion of sequences encoding the first exon.
DeltaPGE-2 is an enhancer of visible phenotype of Psn9/Psn143
DeltaPGE-2, Psn9/Psn143 has visible phenotype
DeltaPGE-2 is an enhancer of eye phenotype of Psn9/Psn143
DeltaPGE-2, Psn9/Psn143 has wing vein phenotype