Xenbase Image ID: 76270

Fig. 7. Developmental expression of C9 from gastrula to organ bud stage. Anterior is to the left and dorsal to the top unless otherwise indicated. (A) Dorsal view of stage 10 embryo showing early spotted expression dorsal ectoderm. Anterior is to the top. (B) Anterior view of stage 17 embryo showing discrete neural crest (nc) and neural groove expression (ng). (C) Anterior view of stage 19-20 embryo. The three segments of the anterior neural crest show discrete expression at this stage. Mandibular segment ex- pression surrounds the presumptive eye field (e). (D) Lateral view of stage 22 embryo shows expression in mandibular (ma) and branchial segments (br) of anterior migrating neural crest. There is discrete hyoid expression noticeable between those two seg- ments. (E) Stage 27 embryo. Neural crest expression is seen in all three segments, as well as in the otic vesicle (ov), the lens (l), and the endoderm (en). (F) Stage 35 embryo shows strong liver and endodermal expression. (G) Isolated gut tube shows liver (li) and intestinal expression sparing the foregut (f), but no distal intestinal (proctodeum) expression (arrow); (lu) lung, (pa) pancreatic bud. Image published in: McLin VA et al. (2008) Copyright © 2008. Reproduced with permission of the Publisher, University of the Basque Country Press. Gene Synonyms Species Stage(s) Tissue c9.L armd15, c9d X. laevis Throughout NF stage 10 dorsal ectoderm c9.L armd15, c9d X. laevis Throughout NF stage 17 neuroectoderm neural crest anterior neural groove anterior neural ridge c9.L armd15, c9d X. laevis Sometime during NF stage 19 to NF stage 20 neuroectoderm neural crest cranial neural crest mandibular crest hyoid crest branchial crest periocular region neural groove anterior neural tube c9.L armd15, c9d X. laevis Throughout NF stage 22 neuroectoderm neural crest migratory neural crest cell mandibular crest hyoid crest posterior branchial crest anterior branchial crest neural tube c9.L armd15, c9d X. laevis Throughout NF stage 27 lens neuroectoderm cranial neural crest mandibular crest hyoid crest anterior branchial crest posterior branchial crest otic vesicle endoderm periocular region c9.L armd15, c9d X. laevis Throughout NF stage 35 and 36 otic vesicle endoderm hindgut liver primordium alimentary system head region c9.L armd15, c9d X. laevis Throughout NF stage 42 liver intestine Image source: Published Larger Image Printer Friendly View

Return to previous page