Figure 2. Expression of class-3 semaphorins in Xenopus laevis. Gastrula, neurula, and tadpole stage Xenopus laevis embryos were analyzed by whole mount in situ hybridization. Rows represent the expression pattern of the semaphorin indicated at the left side. Columns show different stages of Xenopus laevis development. Gastrula stage 11-12 embryos are shown with the dorsal side up. Neurula stage 14-15 and the left panel of neurula stage 16-19 embryos are shown from the dorsal side. The right panel of stage 16-19 neurula embryos presents an anterior view of the embryo shown at left. ba, branchial arches; e, eye; h, heart; m, somitogenic mesoderm; mh, midbrain hindbrain boundary; nt, neural tube; no, notochord; s, somites; sm, splanchnic mesoderm.
Image published in: Koestner U et al. (2008)
Copyright © 2008. Image reproduced with permission of the Publisher, John Wiley & Sons.
| Gene | Synonyms | Species | Stage(s) | Tissue |
|---|---|---|---|---|
| sema3a.L | Sema 3A | X. laevis | Throughout NF stage 14 to NF stage 15 | paraxial mesoderm presumptive midbrain-hindbrain boundary prechordal plate |
| sema3a.L | Sema 3A | X. laevis | Throughout NF stage 16 to NF stage 19 | paraxial mesoderm presumptive midbrain-hindbrain boundary prechordal plate |
| sema3a.L | Sema 3A | X. laevis | Throughout NF stage 23 to NF stage 27 | somite splanchnic layer of lateral plate mesoderm midbrain-hindbrain boundary presomitic mesoderm head mesoderm |
| sema3a.L | Sema 3A | X. laevis | Throughout NF stage 28 to NF stage 32 | somite splanchnic layer of lateral plate mesoderm midbrain-hindbrain boundary presomitic mesoderm head mesoderm |
| sema3c.S | X. laevis | Sometime during NF stage 14 to NF stage 15 | neural tube | |
| sema3c.S | X. laevis | Throughout NF stage 16 to NF stage 19 | neural tube | |
| sema3c.S | X. laevis | Throughout NF stage 23 to NF stage 27 | neural tube forebrain | |
| sema3c.S | X. laevis | Throughout NF stage 28 to NF stage 32 | neural tube forebrain branchial arch tail region otic vesicle | |
| sema3d.S | X. laevis | Throughout NF stage 16 to NF stage 19 | optic field rhombomere neural crest | |
| sema3d.S | X. laevis | Throughout NF stage 23 to NF stage 27 | eye anterior branchial crest posterior branchial crest neural crest cranial neural crest rhombomere | |
| sema3d.S | X. laevis | Throughout NF stage 28 to NF stage 32 | eye anterior branchial crest posterior branchial crest neural crest cranial neural crest rhombomere | |
| sema3fl.L | sema-iv, sema4, semak | X. laevis | Throughout NF stage 14 to NF stage 15 | notochord |
| sema3fl.L | sema-iv, sema4, semak | X. laevis | Throughout NF stage 16 to NF stage 19 | notochord preplacodal ectoderm presumptive midbrain-hindbrain boundary |
| sema3fl.L | sema-iv, sema4, semak | X. laevis | Throughout NF stage 23 to NF stage 27 | midbrain-hindbrain boundary notochord branchial arch rhombomere |
| sema3fl.L | sema-iv, sema4, semak | X. laevis | Throughout NF stage 28 to NF stage 32 | midbrain-hindbrain boundary notochord branchial arch rhombomere |
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