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Gastrulation movements: the logic and the nuts and bolts Leptin MDev Cell 2005[Mar]; 8 (3): 305-20Gastrulation, the period during the early development of animals when major cell and tissue movements remodel an initially unstructured group of cells, requires coordinated control of different types of cellular activities in different cell populations. A hierarchy of genetic control mechanisms, involving cell signaling and transcriptional regulation, sets up the embryonic axes and specify the territories of the future germ layers. Cells in these territories modulate their cytoskeleton and their adhesive behavior, resulting in shape changes and movement. Similarities among different species in patterning and cell biological mechanisms are beginning to allow us to recognize general, conserved principles and speculate on possible ancestral mechanisms of gastrulation.|*Cell Movement[MESH]|*Signal Transduction[MESH]|Animals[MESH]|Body Patterning/physiology[MESH]|Cell Differentiation[MESH]|Cell Shape/physiology[MESH]|Gastrula/cytology/*physiology[MESH]|Germ Layers/cytology/physiology[MESH] |
