UASt regulatory sequences drive expression of an inverted repeat.
Wild-type females crossed with males expressing guduKK100118 under the control of Scer\GAL4tub.PU lay a similar number of eggs as control females crossed with wild-type males. However, only 3% of the eggs hatch.
The hatching rate of eggs laid by females expressing guduKK100118 under the control of Scer\GAL4tub.PU crossed with wild-type males is normal.
The testes of males expressing guduKK100118 under the control of Scer\GAL4tub.PU have normal onion-stage spermatids, and elongated spermatids are seen. However, the mutant testes contain spermatid bundles with little mobility, in contrast to the motile and individualised sperm seen in wild type.
