UASt regulates expression of Rel tagged with Tag:HA.
RelUAS.cSa.Tag:HA, Scer\GAL4Mef2.PR is an enhancer of visible | adult stage phenotype of Mterf4NIG.15390R, Scer\GAL4Mef2.PR
RelUAS.cSa.Tag:HA, Scer\GAL4Mef2.PR is an enhancer of wing phenotype of Mterf4NIG.15390R, Scer\GAL4Mef2.PR