| |
Fig. 1. Photographs showing the distribution of XT/34 mRNA in the
Xenopus embryos revealed by in situ hybridization. A: a mid-sagittat
section of a stage-20 embryo hybridized with the XT/34 sense probe
as control. No signals were seen. B: a mid-sagittal section of a
stage-20 embryo hybridized with the XT/34 anti-sense probe. The
XTCl4 mRNA was prominent in the neural tube, notochord and
mesenchymal tissues under the skin. An accumulation of the mRNA
was observed ventrally in the notochord (arrow heads). C: a midsagitta]
section of a stage-34 embryo. An intense signal was located
at the dorsal midline in the spinal cord (arrow heads). M, myotome;
No, notochord; Nt, neural tube. Scale bars in A and B, 100 #m; in (,
I mm. |
