Expression of AntpScer\UAS.YPWM.LL under the control of Scer\GAL4nullo.PG results in transformation of head to mesothorax. The mutant embryos show head involution defects and repression of the prothoracic beard.
Expression of AntpScer\UAS.YPWM.LL under the control of Scer\GAL4Dll.PU results in transformation of the antenna to mesothoracic leg identity (indicated by the presence of apical/preapical bristles).