UASt regulatory sequences drive expression of a 1A "long" tail-2 splice variant of svr.
svr1A-2-3-t2.UAS/Scer\GAL4svr-PG33 rescues svrPG33
Expression of svr1A-2-3-t2.Scer\UAS driven by Scer\GAL4svr-PG33 rescues the lethality associated with svrPG33/Y hemizygosity.