Fig. 1.

 Generation of larval CNS tissue enriched in glia. (A) Late third instar larval CNS expressing nuclear GFP in glia using repo-Gal4 (repo>nGFP). (B,C) Overexpression of Htl^ACT (B), or the InR (C) in glia using repo-Gal4 causes glial overproliferation. Glia are marked by the expression of nuclear GFP as in A. (D–F') Overexpression of Htl^ACT (E), but not the InR (F), in glia using repo-Gal4 causes overproliferation of PntP2 expressing cortex glia. PntP2 expression shown in magenta (D–F') and glia (green in D–E') are marked by the expression of nuclear GFP as in (A–C).