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Fig. 13 Fig. 13. The effect of BMP treatment on foregut morphology. A) Bilobed foreguts in mock and ASW control animals. B) 1q, 2q, and 3q 12 h pulse animals had small round foreguts (100%). C) Foreguts of 4q 12 h pulse animals were trilobed (100%). (D–E) Total foregut area was significantly smaller in animals subjected to 1q, 2q, 3q, and 4q 12 h BMP pulse than the controls. Animals in E were fixed at a later stage than animals in D and could not be compared due to significant size difference in mock animals. brain, br; foregut, yellow dashed line; scale bar: 50 μm.
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Reprinted from Developmental Biology, 478, Webster, N.B., Corbet, M., Sur, A., Meyer, N.P., Role of BMP signaling during early development of the annelid Capitella teleta, 183-204, Copyright (2021) with permission from Elsevier. Full text @ Dev. Biol.