Adh coding sequence is expressed from an Hsp70 promoter.
Adhhs.PC, wAdh.PB has pigment cell phenotype
Two copies of P{hs-Adh.C} sharply reduces the eye pigment of wAdh.PB in the presence of endogenous Adh. Deletion of Adh (Df(2L)fn3/Df(2L)A379) restores the eye color.