One copy of a +2 element from the nos 3' UTR with a mutation in the +2' region is inserted within the αTub84B 3' UTR sequences of nosαTub84B.UTR.Tag:HA.
Embryos derived from nosBN females which are also expressing nosnos.+2C.T:Ivir\HA1 do not have anterior defects.
nanosnanos.+2C.Tag:HA partially rescues nanosBN
nosnos.+2C.T:Ivir\HA1 partially rescues the abdominal segmentation defect of embryos derived from nosBN females; 21% of the embryos develop no abdominal segments and 79% develop 1-3 abdominal segments.