Deletion removing P{EP}subEP616 (located 105bp upstream of the sub ATG), and sequence flanking the insertion, 5' of sub (approaching 1kb) as well as more than half of the sub transcription unit.
female sterile (with subDub)
Sterile females show rough eyes and clipped wings. Mutant males show elevated levels of X-Y chromosome non-disjunction in male meiosis. Embryos derived from mutant mothers show early mitotic abnormalities including arrest before embryonic mitoses begin, a polar body near one end and the development of one or two spindles in the middle. Structure of spindles in the embryos is abnormal, and their size variable.
Allelic series (strongest to weakest phenotype): sub131/subDub = sub202/subDub = sub218/subDub = sub22/subDub = sub72/subDub = sub104/subDub = sub158/subDub > sub1794/subDub > +/subDub.