Jxc1 expression in sensory and neuronal epithelia. A–F, H–K, mRNA in situ hybridizations using Jxc1 antisense (A–F, H–K) and sense (I) probes. se, Sensory epithelium; sg, spiral ganglion; oc, organ of Corti; sv, stria vascularis; ger, greater epithelial ridge; ler, lesser epithelial ridge; mu, macula utricle; ac, cristae ampullaris; onl, outer nuclear layer; inl, inner nuclear layer; tg, trigeminal ganglion; hf, hair follicle; oe, olfactory epithelium; nfl, nerve fiber layer. I, Staining with the sense Jxc1 probe produced no significant signal. G, We used Lfng as marker to identify the sensory regions in the cochlea.