Figure 3. Pou4f2^Cre-mediated recombination within the retina. Cre-mediated recombination within the retina was assayed in Pou4f2^Cre/+ Ai9 mice by immunostaining retinal cryosections with a panel of markers. Channels are split out for better visualization. Markers are described in further detail in Table 1. Abbreviations: mela = melanopsin, Calb = calbindin. Scale bars = 50 μm. Insets = 16 μm boxes.