msl-2 poly(U) clusters in the 3'UTR are replaced with a segment of the SV40 genome containing a polyadenylation signal.
wild-type
In XX cells of Sxlf1/Sxlfhv1 females that have adopted the male fate and express limiting quantities of msl-2 msl-1 is precisely restricted to sites of msl-2 localisation.
msl-2MM2SV rescues msl-21