DescriptionDifferentiation Tree of the Axolotl.jpg
English: This axolotl differentiation tree indicates tissues determined from cleavage to the end of gastrulation. All tissues types should be considered “presumptive”. Red, shift to right and the letter C indicate a contraction wave and green, shift to right, and the letter E an expansion wave. Staging numbers hours since fertilization on the left and right are from Bordzilovskaya et al. (1989)7 and indicate the duration of each wave. Note each wave may pass through one tissue and continue into an adjacent tissue and so, for example, E3 begins in endodermal tissue and then continues into mesodermal tissue.
This work was published in my book, Embryogenesis Explained, World Scientific, Singapore, 2016, figure 7.1, page 502 and I have approval from the publisher to release it here.
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