Fig. 3
From: Characterization of the melanopsin gene (Opn4x) of diurnal and nocturnal snakes
In situ hybridization using ‘antisense’ ‘DIG’ labeled cRNA probes in retinal sections of the diurnal colubrid Tomodon dorsatus. a Expression of melanopsin mRNA in the outer nuclear layer (ONL), in the inner nuclear layer (INL), and ganglion cell layer (GCL) (arrows). b Intense melanopsin expression in the optic nerve (ON) (arrows). No labeling was observed in the retinal sections incubated with ‘sense’ probes (not shown). RPE, retinal pigment epithelium; Re, retina. Scale bars: A = 50 μm, B = 100 μm