Figure 4. Pou4f2^Cre-mediated recombination within the retina continued. 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: TH = tyrosine hydroxylase, PKC = protein kinase C, GS = glutamine synthetase. Scale bars = 50 μm. Insets A–C = 16 μm boxes, Insets in D and F = 24 μm boxes.