The role of the dorsal lip in the induction of heart mesoderm in Xenopus laevis.

@article{Sater1990TheRO,
  title={The role of the dorsal lip in the induction of heart mesoderm in Xenopus laevis.},
  author={Amy K. Sater and Antone G. Jacobson},
  journal={Development},
  year={1990},
  volume={108 3},
  pages={461-70}
}
We have examined the tissue interactions responsible for the expression of heart-forming potency during gastrulation. By comparing the specification of different regions of the marginal zone, we show that heart-forming potency is expressed only in explants containing both the dorsal lip of the blastopore and deep mesoderm between 30 degrees and 45 degrees lateral to the dorsal midline. Embryos from which both of these 30 degrees-45 degrees dorsolateral regions have been removed undergo heart… CONTINUE READING