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XB-IMG-23573

Xenbase Image ID: 23573

Figure 2. Specific Inhibition of Mesodermal Differentiation by XFDL(A) q-PCR analysis for Xbra (top), Mix.2 (middle), and Sox17α (bottom) expression. The four animal blastomeres at the 8-cell stage were injected with control mRNA (400 pg/cell; lanes 1 and 2) or 100 pg/cell (lane 3), 200 pg/cell (lane 4), or 400 pg/cell (lane 5) of XFDL mRNA. Animal caps (excised at stage 8.5) were then cultured without (lane 1) or with 5 ng/ml Activin (lanes 2–5) until siblings reached stage 11.(B) q-PCR analysis for Sox2 expression. Chordin (50 pg/cell; lanes 2–5) and increasing amounts of XFDL mRNAs were coinjected and analysis was performed as in (A).(C–R) In situ hybridization analysis of the embryos injected with XFDL mRNA. Control embryos (C, E, G, I, K, M, O, and Q) or embryos given XFDL mRNA (400 pg/cell) by injection at the 4-cell stage (D, F, H, J, L, N, P, and R) were harvested at stage 10.5 (C–L and O–R) or stage 11.5 (M and N) and analyzed by the indicated probes. Arrowheads, the dorsal and ventral blastopore lips; bracket, the marginal zone (see Xbra expression in panel C).(S and T) Embryos injected with SalF (400 pg/cell; S) or Tsh3 (400 pg/cell; T) were analyzed at stage 10.5 by in situ hybridization using the Xbra probe.

Image published in: Sasai N et al. (2008)

Copyright © 2008. Image reproduced with permission of the Publisher, Elsevier B. V.

GeneSynonymsSpeciesStage(s)Tissue
tbxtXbra, X-bra, bra, Xbrachyury, brachyury, ntl, t-a, t-b, tXenopusThroughout NF stage 10.5mesoderm
blastopore
sox2.LXLSOX-2, Sox-2, XSox2, Xsox-2, anop3, mcops3X.laevisThroughout NF stage 11.5ectoderm
dorsal marginal zone
neuroectoderm
mix1mix.1, mix.2, mix2, tMixXenopusThroughout NF stage 10.5marginal zone
blastopore
endoderm
sox17a.LxSox17alpha1, xSox17alpha2, tSox17alpha, Xsox17-alpha, Sox17alpha, sox17-alpha, xsox17a, xsox17, Xsox17alpha, sox17 alphaX.laevisThroughout NF stage 10.5blastopore
endoderm
foxi1.LXema, ectodermally-expressed mesendoderm antagon, FoxI1e, xfoxi1, ema, foxi1e, foxi3X.laevisThroughout NF stage 10.5ectoderm
animal cap
non-involuting marginal zone
ventx1.2.Svent-1, Xvent-1, vent1, Xvent1X.laevisThroughout NF stage 10.5animal cap
marginal zone
ventral marginal zone
ectoderm
nodal3.1.LXnr3, nr3, Xnr-3X.laevisThroughout NF stage 10.5ectoderm
dorsal
sall2.LsalF, XsalF, XsalF-a, XsalF-b, Xsal2X.laevisThroughout NF stage 10.5marginal zone

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