GAL4 ENHANCER TRAPS EXPRESSED IN THE EMBRYO, LARVAL BRAIN, IMAGINAL DISCS, AND OVARY OF DROSOPHILA

We have screened a collection of approximately 400 GAL4 enhancer trap lines for useful patterns of expression in the embryo, larval brain, i maginal discs, and ovary using a UAS-lacZ reporter construct. Although similar patterns of expression have previously been reported in the o riginal P[lacZ] enhancer trap screens, these lines are useful for dire cting ectopic expression of genes in discrete patterns during these st ages. In addition, we have identified some unique patterns of expressi on that have not been previously reported. (C) 1997 Wiley-Liss, Inc.