B1-GATAa-B2-HA. C, D, E projections of confocal stacks of images from embryos either electroporated (C, E) or microinjected with mRNA (D) and expressing ensconsin-3GFP (C, D), or ci-aurora kinase (E). Due to the mosaic expression of the transgene, some cells express the marker at a lower level (C, F, G)