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. Author manuscript; available in PMC: 2011 May 3.
Published in final edited form as: Dev Dyn. 2010 Apr;239(4):1162–1177. doi: 10.1002/dvdy.22275

Figure 9. Tailbud-staged PSM cells can form myotome fibers when grafted to younger gastrulae.

Figure 9

Grafts were performed in which RDA-labeled PSM cells were grafted to the upper lateral lip (Graft 1) and lower-lip (Graft 2) regions of stage 11 host embryos and allowed to develop to tadpoles (stage 39). Grafted embryos were fixed and stained for the myotome marker, 12/101. (B) PSM cells grafted to the upper lateral lip region (Graft 1) formed myotome fibers in the central region of somites along most of the anteroposterior axis. (C) PSM cells grafted to the lower lip region (Graft 2) formed myotome fibers in the ventral aspect of somites positioned towards the posterior end of the embryo. The probability of tailbud PSM cells grafted to the upper lateral lip (Graft 1) and lower lip (Graft 2) gastrulae that give rise to myotome fibers at specific regions along the anteroposterior (D) and dorsoventral (E) axes are shown.