Remobilisation of the P{lacW} element in aubsting-1, resulting in a deletion.
spermatid (with aubsting-1)
aubsting-1/aubsting-3a flies are male sterile and produce needles in the spermatogenic stages. Df(2L)aubsting-3a homozygotes (mutant for aubsting-3a and RpL91) carrying RpL9+t3.9 (to rescue the RpL91 phenotype) are viable and female sterile. Df(2L)aubsting-3a homozygous females carrying RpL9+t3.9 mated to wild-type males lay eggs which start to develop, but arrest at various stages, starting at stage 5. Very few embryos survive gastrulation, and they die before germ band retraction.