## Abstract Two embryonic tissuesβthe neural crest and the cranial placodesβgive rise to most evolutionary novelties of the vertebrate head. These two tissues develop similarly in several respects: they originate from ectoderm at the neural plate border, give rise to migratory cells and develop int
Editorial: the evolutionary origin of neural crest and placodes
β Scribed by Clare V.H. Baker; Gerhard Schlosser
- Book ID
- 102340448
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 59 KB
- Volume
- 304B
- Category
- Article
- ISSN
- 1552-5007
No coin nor oath required. For personal study only.
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Development of neural ectoderm, neural crest, and otic placode with special reference to a new placodal derivative, the ectodermal lining of the opercular cavity, is described in a teleost fish, the Atlantic cod Gadus morhua, from a stage-by-stage examination of embryonic development. The ectodermal
Cranial sensory placodes are specialised areas of the head ectoderm of vertebrate embryos that contribute to the formation of the cranial sense organs and associated ganglia. Placodes are often considered a vertebrate innovation, and their evolution has been hypothesised as one key adaptation underl