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XB-IMG-82740

Xenbase Image ID: 82740


Fig. 1. Cloning and expression analysis of xBtg-x. (A) The �combined organizer graph� of clones regulated by maternal β-Catenin (x axis) and Nodal-related signaling (y axis) in a cDNA macroarray screen (Wessely et al., 2004). Each spot represents one cDNA clone analyzed. The positions of xBtg-x, Xnr-3 (a target of β-Catenin), and chordin (a target of both β-Catenin and Nodal-related signaling at gastrula) are indicated. (B) Schematic diagram of xBtg-x showing the conserved Boxes A and B of the antiproliferative domain characteristic of members of the Btg/Tob gene family. (C) Phylogenetic tree of the Btg/Tob gene family. Alignment was performed using the ClustalW program. (D) RT-PCR analysis of xBtg-x and chordin expression in stage 4 to stage 17 Xenopus embryos. Ornithine Decarboxylase (ODC) serves as loading control. (E�L) Whole-mount in situ hybridization of Xenopus embryos with xBtg-x antisense probe. (E�H) Expression of xBtg-x in gastrula stage embryos viewed from the vegetal side with dorsal to the top: (E) uninjected control; (F) embryo treated with LiCl at the 32�cell stage; (G) embryo injected with 800 pg δN-XTcf-3 mRNA, or (H) 150 pg of the Nodal-related antagonist cer-S mRNA. (I) Expression of xBtg-x at stage 9, lateral view; (J) stage 10 hemi-sectioned along the dorso-ventral axis, dorsal to the right; (K) stage 14 and (L) stage 15 in dorsal view, anterior to the left.

Image published in: Wessely O et al. (2005)

Copyright © 2005. Image reproduced with permission of the Publisher, Elsevier B. V.

GeneSynonymsSpeciesStage(s)Tissue
btg5.2.Sxbtg-xX.laevisThroughout NF stage 9dorsal marginal zone
animal hemisphere
dorsal
animal
btg5.2.Sxbtg-xX.laevisThroughout NF stage 10dorsal marginal zone
endomesoderm
dorsal
ectoderm
btg5.2.Sxbtg-xX.laevisThroughout NF stage 14neural plate
posterior
neural crest
trunk neural crest
cranial neural crest
chordal neural plate border
btg5.2.Sxbtg-xX.laevisThroughout NF stage 15chordal neural plate border
posterior

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