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Fig. 2, Photographs showing the distribution of XT/34 mRNA in cross sections. A,B: sections of a stage-2() embryo. In the rostral region (A), an
intense signal was recognized dorsal to the neural tube, presumably in neural crest cells (arrow). In the caudal region (B), signals were distributed
in the whole neural tube. C,D: sections of a stage-26 embryo, An intense signal was observed in ganglion cells of the trigeminal nerve (arrows)in
the rhombencephalon (C) and cells dorsal to the neural tube in the spinal cord (D). E,F: sections of a stage-34 embryo. An intense signal was
localized in ganglion cells of cranial nerves VII/VIII (arrow) at the level of the otic vesicle (El and in cells of the dorsal region in the spinal cord
(F). M, myotome, No, notochord; Nt, neural tube; O, otic vesicle: R, retina. Scale bars, 100/xm. |