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Fig. 3. Ci-ephrin-Ad is broadly expressed in the animal hemisphere.
(A) Ciona embryos at progressively older stages hybridized for
Ci-ephrin-Ad. (B) Schematic representation of
Ci-ephrin-Ad-expressing cells in the animal hemisphere. The black
dots indicate blastomeres that express the gene. The Ci-ephrin-Ad
transcript is present in all animal blastomeres at the 16-cell stage, but
diminishes in two of the progenies, b6.5 and b6.7, at the 32-cell stage.
Zygotic expression further diminishes at the 64-cell stage. The relative
positioning of the b6.5 and A6.3 blastomeres is shown in the vegetal view of
the 32-cell embryo.
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