Wolpert: Principles of Development 3e
Chapter 13
Regeneration
Genes controlling regeneration in Hydra are similar to those expressed in animal embryos.
The Wnt pathway that leads to activation of b -catenin (see section 3.6 on page 110 in Wolpert text) is essential for Hydra development (Figure13.22 on page 492 in Wolpert. Visit Roel Nusse’s “Wnt Homepage” at Stanford University (http://www.stanford.edu/~rnusse/wntwindow.html) to keep tabs on this growing gene family through the genomic databases of different organisms. In particular, check out the following links:
Learn more about the role of Wnts in the formation of very diverse body plans through links to “Evolutionary Origin Wnt Components”.
At the bottom of the Wnt Homepage click on the diagram “Comparison of Wnt-Hedgehog” and list the features that these two pathways have in common.


