Drives expression in hemocytes at all stages.
ScerGAL4crq.PO drives expression in embryonic macrophages. Expression is first observed at germ band retraction stage (embryonic stage 12-13). ScerGAL4crq.PO expression in the embryonic lymph gland does not coincide with that of ScerGAL4Dot.PK, indicating that these drivers mark distinct hemocyte lineages.