Fig. 6. Regrafting of GFP-labelled TBM (derived from an anterior streak graft) results in contribution to short stretches of somites, not the tail bud. (A) Whole embryo and (B) dissected paraxial mesoderm (enlarged) of embryo shown in A. Cells have incorporated over a distance of six somites unilaterally. Arrows indicate anterior and posterior borders of labelled cell incorporation.