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Fig. 4. EDEN-BP morpholinos alter presegmentation in the PSM. Embryos were injected
in one blastomere at the two-cell stage with 25 ng of each EDEN-BP morpholino.
(A-D) Lateral views of stage 25/26 embryos stained for ESR5 (A,B) or X-Delta2
(C,D). (A,C) Non-injected sides, and (B,D) injected sides of the same embryos.
TBD, tailbud domain. S1 to S4, Somitomeres 1 to 4. (E-G) Posterior views of
stage 20 embryos stained for ESR9, representative of phase I (E), II (F) and
III (G) of the dynamic mode of expression of ESR9. (E'-G')
Schematic drawings of E-G.
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