Fig. 5. Expression of Mab21l1 and Mab21l2 transcripts during eye development. In situ hybridization of coronal frozen (A-F) and paraffin wax (G,H) sections of wild-type eyes. Mab21l1 but not Mab21l2 transcripts are expressed in lens, whereas both are similarly present in retina. lp, lens placode; nr, neural retina; on, optic nerve; ov, optic vesicle; pe, retinal pigmented epithelium; pnr, presumptive neural retina; ppe, presumptive retinal pigmented epithelium; le, lens epithelium; se, surface ectoderm. Scale bars: 50 µm for A,B; 100 µm for C-H.