UAS regulatory sequences drive expression of a short inverted repeat.
axon | P-stage, with Scer\GAL4c305a
Scer\GAL4nSyb.PS, Sema1aHMS01307 has abnormal neuroanatomy | P-stage phenotype, non-enhanceable by Sema1bKO
Scer\GAL4nSyb.PS, Sema1aHMS01307 has medulla layer | P-stage phenotype, non-enhanceable by Sema1bKO