Insertion of P{wH} into an intron of the αftz-f1 transcription unit, at a position that is about 2kb upstream of the βftz-f1 transcription unit.
viable
"FBti0001619 == P{wH}ftz-f12-2" was stated as revision.
"FBti0001619 == P{wH}ftz-f12-2" was stated as revision.