pntMI03880/Df(3R)Exel9012 mutant embryos show a significant increase in the overall number of cardioblasts, due to a significant increase in the number of ostial cardioblasts, as compared to controls.
Oenocytes are completely absent in pntMI03880 homozygous and pntMI03880/pnt05484Δ33 transheterozygous, but not pntMI03880/pnt07825Δ78 transheterozygous, stage 15 embryos, unlike in pntMI03880 heterozygous and wild-type controls.