A tubulin promoter drives expression of full length msl-3, which is tagged at the C-terminal end with Tag:FLAG.
msl-3tub.Tag:FLAG rescues msl-3unspecified
msl-3tub.Tag:FLAG partially rescues msl-3083
76.8% of msl-3083 males carrying msl-3tub.T:Zzzz\FLAG survive to adulthood.