Whole mount (A-E) and histological (A’-E’) expression of trpv5 transcripts in developing X. laevis embryos. (A) dorsal view, (B-E) lateral view, anterior to the right for all whole mount embryos; dorsal to the top for all histology images. (A, A’) stage 15 (mid-neurula stage); (B, B’, B”) stage 20 (late neurula stage); (C, C’, C”) stage 25 (early tailbud stage); (D, D’, D”) stage 30 (late tailbud stage); (E, E’) stage 35 (swimming tadpole stage). Arrows indicate regions of gene expression (ba, branchial arches; ep, epidermis; pd, proctodeum). Dashed lines represent positions of corresponding sections. Scale bars = 250µm.