Abstract
Neural crest and cranial placodes are evolutionary innovations of vertebrates, which contribute to many novel skeletal and sensorineural structures of the vertebrate head. This chapter first sketches briefly how neural crest and placodes develop in vertebrates. It then argues that many of the genes required for cytodifferentiation, patterning, and morphogenesis of these tissues are evolutionarily ancient and that the origin of neural crest and placodes in the vertebrate lineage is due to the rewiring of gene regulatory networks.
| Original language | English |
|---|---|
| Title of host publication | Evolution of Nervous Systems |
| Subtitle of host publication | Second Edition |
| Publisher | Elsevier Inc. |
| Pages | 25-35 |
| Number of pages | 11 |
| Volume | 1-4 |
| ISBN (Electronic) | 9780128040423 |
| ISBN (Print) | 9780128040966 |
| DOIs | |
| Publication status | Published - 1 Jan 2016 |
Keywords
- Amphioxus
- Ascidians
- Ectodermal patterning
- EMT
- Evolution
- Eya1
- Multipotency
- Neural crest
- Placodes
- Preplacodal region
- Sensory cells
- Six1