(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 3. PMC ingression is blocked by SnaMASO injection. (A-C) Control
embryos show normal PMC ingression (arrow), and normal gastrulation.
(D-G) Embryos of the same age as A-C injected with SnaMASO. Compared
with the control, SnaMASO-injected embryos (Sna morphants) show no PMC
ingression (D), even at gastrula stages (E-G). (G) Invagination is also
delayed, though occurs normally later. MB, mesenchyme blastula; EG, early
gastrula; LG, late gastrula.