In order to target cells to the future tailbud, cells from fluorescent dextran labeled (either Rhodamine, Fluorescein, or Cascade Blue dextran, MW 10,000, Molecular Probes) sphere stage donor embryos were transplanted into the ventral margin of unlabeled shield stage host embryos, as previously described (Martin and Kimelman, 2012 (link)). Transplantations were performed under a Leica S6E dissecting microscope using a Cell Tram Vario (Eppendorf). Statistical analysis of quantified cell transplants was performed with the Fisher’s exact test.
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