Insertion at position 3R:2483680 (release 5).
The average number of crystal cells per embryo is reduced (to 14.1) in homozygous stage 13-14 embryos compared to wild type (36 +/- 2.2 cells on average). Mutant stage 14 embryos show cell cycle defects in the head region.
After six generations of outcrossing the lethality continued to segragate with the P{PZ} insertion.
Excision of the insertion reverts the mutant phenotype.
Complements: lab01241. Complements: pb04498.