Expression of Alk cDNA fused to SV40 3' UTR, is driven by bap enhancer sequences from Scer\GAL4bap.3, fused to an Hsp70 basal promoter.
muscle founder cell & visceral muscle primordium | ectopic
Stage 12 Alkbap3.PL have increased numbers of muscle founder cells in the visceral mesoderm compared to wild-type.