Fig. 5-S2
Transplanted cells frequently populate head structures.
lft1-/-;lft2-/- mutant donors were injected with 0.4 pg Alexa 488-dextran (3 kD, ThermoFisher) and 10 pg lft1 or lft2 mRNA at the one-cell stage. At sphere stage, around 50 cells from donors were transplanted into the animal pole of lft1-/-;lft2-/- mutant host embryos as in Figure 5A,E and F. A representative selection of rescued lft1-/-;lft2-/- mutant hosts that received lft1- (A?D??) or lft2- (E?H??) expressing cells are shown at 1 day post-fertilization. Transplanted cells (marked with Alexa 488) are frequently found in head structures, consistent with an animal pole localization during germ layer specification. Embryos shown in A-A?? and E-E?? are the same shown in Figure 5E?E? and F?F?, respectively.