International Journal of Zoology / 2010 / Article / Fig 7

Research Article

Mosaic and Regulation Phenomena during the Early Formation of the Chick Blastoderm

Figure 7

(a): Schematic representation of the different structures found in a right hemi-embryo after 1 day of culture. The head region is bent over the original midline and contains the endophyllic crescent (E) with associated primordial germ cells. A central notochord (C) and prechordal plate have formed below a symmetrical neural plate (N). A hemi-primitive streak (indicated by a red half arrow) is localized in the cut edge of the hemi-embryo. R, right side of the original blastoderm; JE, half junctional endoblast derived from the original half Rauber’s sickle with parallel area vasculosa (AV). (b): Schematic representation of the structures found in a left hemi-embryo after 1 day of culture; the same indications as in Figure 7(a) but at the left side (L).

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