Internal deletion in the P{PZ} element, with no apparent loss of flanking DNA approximately 12kb 5' and 8.5kb 3' to the insertion site.
16% of eggs laid by homozygous females are wild type, others have dorsal appendage defects. A "dumpless" phenotype, in which the nurse cells fail to transfer their contents to the oocyte is seen in 25% of cases. rhi2-sL15/rhi2-L12 egg chambers have normal nurse cell chromatin morphology up to stage S5, but only 20% have normal nurse cell chromatin morphology at other stages. 58% of the egg chambers have a persistant five-lobed chromatin phenotype. 6% of egg chambers are degenerating and 7% have an abnormal number of nurse cells.
Induced with: l(2)2-LsL15. Complementation testing, Southern blot analysis, transcript mapping and expression data suggestion that the lethality of this chromosome is not due to disruption of the rhi gene (and is due instead to l(2)2-LsL15).