Expression of NIn1c-GFP in live embryos. Embryos were injected with the Nin1c-GFP construct as described in methods. Two days later expression of the reporter was visualized in live embryos using a fluorescent microscope. Expressing embryos were photographed using a digital camera. Panel A: Rohon-Beard neuron. Note that the axons are only weakly fluorescent with the GFP reporter compared with the EGFP-F reporter (for example figures 10 and 11). Mag = 30×. Panel B: Trigeminal neuron. Mag = 30×.