One copy of non-phosphorylatable oskS244A.S248A rescues abdomen formation in oskA87/Df(3R)p-XT103 but also produces a significant number of embryos with head defects. Approximately 20% of the embryos laid by females with two copies of oskS244A.S248A in a oskA87/Df(3R)p-XT103 background develop head defects and 10% exhibit symmetric bicaudals.
Expression of oskS244A.S248A in a wild-type background produces three times as many embryos with head defects as in controls, with 19% bicaudal embryos.
The presence of one copy of oskS244A.S248A exacerbates abdominal and head defects and increases the number of bicaudal embryos derived from mago1/Df(3R)p-XT103 mothers.
oskS244A.S248A partially rescues oskA87/Df(3R)p-XT103
One copy of non-phosphorylatable oskS244A.S248A rescues abdomen formation in oskA87/Df(3R)p-XT103 but also produces a significant number of embryos with head defects. Approximately 20% of the embryos laid by females with two copies of oskS244A.S248A in a oskA87/Df(3R)p-XT103 background develop head defects and 10% exhibit symmetric bicaudals.