Lesion present between 16.8 and 20.3kb downstream of zero (zero being 973bp proximal to the pk transcription start site.).
Causes no embryonic phenotype even when homozygous mutant embryos develop from homozygous mutant mothers. Causes an extreme polarity phenotype in the wing and notum. Denticle belt morphology and denticle orientation remains wild-type.
Roote.