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ZFIN ID: ZDB-FIG-110321-24
Wu et al., 2011 - SNW1 Is a Critical Regulator of Spatial BMP Activity, Neural Plate Border Formation, and Neural Crest Specification in Vertebrate Embryos. PLoS Biology   9(2):e1000593 Full text @ PLoS Biol.
Anatomical Terms:
Stage Range: 1-4 somites to 5-9 somites

Fig. 6 In post-gastrula zebrafish and Xenopus embryos the neural crest domain overlaps with the dorsal-anterior domain of BMP activity.

(A) At early segmentation stages of zebrafish development the domains of expression of SNW1 and Sox10 partially overlap with the anterior “horseshoe” domain of BMP activity. Transgenic BRE-mRFP zebrafish embryos were stained for SNW1 (grey-purple) and Sox10 (dark blue), Sox10 (dark blue) and mRFP (grey-purple), mRFP (dark blue) and SNW1 (turquoise), mRFP (dark blue) and Hgg1 (maroon), or SNW1 (dark blue) and Hgg1 (maroon) at 11 hpf and 13 hpf. mRFP staining indicates regions of BMP activity. (B) A diagram representing the staining patterns of the four markers is shown. At 11 hpf, domains of expression of SNW1, Sox10, and mRFP partially overlap at the lateral edges of the dorsal-anterior horseshoe domain. However at 13 hpf, it is clear that although the neural crest marker Sox10 is still adjacent to the domain of SNW1 expression in the neural plate, the horseshoe mRFP expression domain (red arrowheads in [A]) is separated from the Sox10 and SNW1 expression domains. (C) Wild-type stage 13 Xenopus embryos were bisected transversely through the neural crest region. The anterior half was immunostained with an antibody against p-Smad1, and the posterior half was used for WISH against Slug. The embryos were then imaged along the plane of bisection and overlayed. The yellow lines outline the boundaries of detected p-Smad1 staining at the neural plate border, which overlaps with the Slug-positive neural crest cells.

Gene Expression Details
Gene Antibody Fish Conditions Stage Anatomy Assay
ctslb cj100Tg standard conditions 1-4 somites polster ISH
5-9 somites polster ISH
mRFP cj100Tg control 1-4 somites whole organism antero-dorsal region ISH
5-9 somites whole organism antero-dorsal region ISH
snw1 cj100Tg standard conditions 1-4 somites neural plate ISH
5-9 somites neural plate ISH
sox10 cj100Tg standard conditions 1-4 somites neural crest ISH
5-9 somites neural crest ISH
Antibody Labeling Details No data available
Phenotype Details No data available
ZFIN wishes to thank the journal PLoS Biology for permission to reproduce figures from this article. Please note that this material may be protected by copyright. Full text @ PLoS Biol.