Xenbase Image ID: 81950

Fig. 3. Late gene expression in the Xenopus tail bud. Whole-mount in situ hybridisations to show expression of late genes in the tail bud during early extension of the tail. (A), Xwnt3a; (E), lunatic fringe; (I), Xhox3. (A,E,I) show the expression patterns at stage 30 viewed from the left side with anterior to the left, tail bud to the right and dorsal up. (B,F,J) show detail of the tail bud expression at stage 30, in cleared specimens. (C G,K) are sagittal sections through stage 30 embryos. Scale bar, 250 mm. Note the sharp posterior boundaries of lunatic fringe and Xwnt3a expression in the dorsal roof, and restriction of Xhox3 to the distal tip of the posterior wall, (D,H,L) are schematic representations of (C,G,K), respectively. (M) Stage 30 tail bud showing BMP-4 expression in the fin and epidermis. (N) X-serrate-1 expression in the fin. Abbreviations: cnh, chordoneural hinge; end, endoderm; nc, notochord; nt, neural tube; pw, posterior wall. Image published in: Beck CW and Slack JM (1998) Copyright © 1998. Image reproduced with permission of the Publisher, Elsevier B. V. Gene Synonyms Species Stage(s) Tissue wnt3a.S wnt-3a, Xwnt-3a, xwnt3a X. laevis Throughout NF stage 29 and 30 neural tube brain hindbrain tail tip midbrain-hindbrain boundary dorsal fin dorsal fin margin otic vesicle ventral fin margin roof plate lfng.L lunatic fringe X. laevis Throughout NF stage 29 and 30 tail bud eye glomus lymphatic system pharyngeal arch cephalic nerve cranial nerve brain forebrain midbrain hindbrain spinal cord anterior ventral blood island evx1.L eve1, Xhox3 X. laevis Throughout NF stage 29 and 30 tail bud posterior wall of neurenteric canal mesenchyme hindbrain post-anal gut tail tip eye otic vesicle pharyngeal arch circumblastoporal collar involuted ventral mesoderm roof plate bmp4.L bmp-4, bmp2b, bmp2b1, bmp4-a, bmp4-b, DVR-4, ofc11, XBMP-4, xbmp4, zyme X. laevis Throughout NF stage 29 and 30 fin epidermis jag1.L jagged1, serrate, serrate-1, X-Serrate-1 X. laevis Throughout NF stage 29 and 30 fin Image source: Published Larger Image Printer Friendly View

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