New insights into critical events of avian gastrulation.

  title={New insights into critical events of avian gastrulation.},
  author={Aaron Lawson and Gary C Schoenwolf},
  journal={The Anatomical record},
  volume={262 3},
The formation and progression of the primitive streak are key events of avian gastrulation. We examine these processes in detail, using various morphological approaches. We show that formation of the primitive streak occurs locally at the caudal midline of the area pellucida, as cells in the caudal midline undergo an epithelial-to-mesenchymal transformation, and that extensive migration of delaminated cells arising from more rostral or peripheral areas of the blastoderm is not involved in… CONTINUE READING