Insertion of P{SUPor-P} into Scim25.
mitosis & nuclear chromosome
Dominantly decreases transmission of Dp(1;f)J21A to offspring to 15%. Recessive lethality acts in the second larval instar stage. Larval neuroblast squashes reveal an extremely low mitotic index. Some mitotic figures show partial loss of sister chromatid cohesion, particularly at heterochromatic regions. Phenotype is very similar to that of wapl mutants. Interphase nuclei appear disintegrated and some mitotic figures are clumped together.