 Decapentaplegic

Decapentaplegic (Dpp) is a key morphogen involved in the development of the fruit fly "Drosophila melanogaster" and is the first validated secreted morphogen.It is known to be necessary for the correct patterning and development of the early "Drosophila" embryo and the fifteen imaginal discs, which are tissues that will become limbs and other organs and structures in the adult fly.