File:Schematic representation of mammalian initial a.-p. axis formation stages in dorsal views (a–e) and median sagittal sections (g and h) using the rabbit as a model.jpg

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Description Fig. 4 Schematic representation of mammalian initial a.-p. axis formation stages in dorsal views (a–e) and median sagittal sections (g and h) using the rabbit as a model and compass needle symbols (f) to illustrate the increasing restriction of possible a.-p. axis orientation in the TAP model, in which AMC, ASD and EN are the putative anchors 1, 2, and 3, respectively. T: trophoblast (grey), Y: yolk sac epithelium (orche), E: epiblast (red, boxed in upper layer), H: hypoblast (boxed in lower layer), MZ: marginal zone (camel), CZ: central zone (light blue), AMC: anterior marginal crescent (light green), ASD: anterior streak domain (dark blue), red dashed line: border between anterior gastrula plate (AGP) and posterior gastrula extension (PGE), EN: end node (yellow), PS: primitive streak (purple), arrows: expansion of CZ, stick figure superimposed on PS in f, right hand panel: contribution of PS to adult body parts. Scale bar: roughly 500 μm
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Source https://link.springer.com/article/10.1007/s00427-021-00677-w/figures/4 Expression patterns of signalling molecules and transcription factors in the early rabbit embryo and their significance for modelling amniote axis formation. Dev Genes Evol 231, 73–83 (2021). https://doi.org/10.1007/s00427-021-00677-w.
Author Plöger, R., Viebahn, C.

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current21:24, 12 April 2024Thumbnail for version as of 21:24, 12 April 20241,532 × 661 (638 KB)Rasbak (talk | contribs){{Information |description=Fig. 4 Schematic representation of mammalian initial a.-p. axis formation stages in dorsal views (a–e) and median sagittal sections (g and h) using the rabbit as a model and compass needle symbols (f) to illustrate the increasing restriction of possible a.-p. axis orientation in the TAP model, in which AMC, ASD and EN are the putative anchors 1, 2, and 3, respectively. T: trophoblast (grey), Y: yolk sac epithelium (orche), E: epiblast (red, boxed in upper layer),...

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