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Fig. 3. Distribution of type I Bmp receptor transcripts in the developing Xenopus eye. (A) Wholemount in situ hybridization of a stage 28 embryo using a BmprIa antisense probe. (B-E) Transverse sections through the retinas of Xenopus embryos processed for BmprIa in situ hybridization, at stages 28 (B), 30 (C), 33/34 (D) and 35/36 (E). * in (C) is the forming RGCL. (F) Bmpr1b wholemount in situ hybridization of a stage 30 embryo. (G-J) Transverse retinal sections through stage 28 (G), 30 (H), 33/34 (I) and 35/36 (J) embryos show expression of BmprIb. Scale bar in (B) is 50 μm for (B-E) and (G-J). Abbreviations: D, dorsal; V, ventral; ba, branchial arches; e, eye; k, kidney; is, intersomitic region; L, lens; nr, neural retina; ot, otic vesicle; rpe, retinal pigment epithelium. |
