The evolution of neurosecretory centers in bilaterian forebrains: Insights from protostomes

Forebrain neurosecretory systems are widespread in the animal kingdom. This review focuses on recent molecular data from protostomes, discusses the original complexity of the bilaterian forebrain neurosecretory system, provides an evolutionary scenario for the emergence of the vertebrate preoptic ar...

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Bibliographic Details
Published in:	Seminars in cell & developmental biology Vol. 18; no. 4; pp. 492 - 501
Main Author:	Tessmar-Raible, Kristin
Format:	Journal Article
Language:	English
Published:	England Elsevier Ltd 01-08-2007
Subjects:	Animals Bilateria Biological Evolution Hypothalamus Hypothalamus - cytology Hypothalamus - embryology Hypothalamus - physiology Infracerebral gland Neurosecretory Systems - cytology Neurosecretory Systems - embryology Neurosecretory Systems - physiology Pars intercerebralis Polychaetes Prosencephalon - cytology Prosencephalon - embryology Prosencephalon - physiology Sensory-neurosecretory cells Infracerebral gland Polychaetes Sensory-neurosecretory cells Hypothalamus Pars intercerebralis
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Summary:	Forebrain neurosecretory systems are widespread in the animal kingdom. This review focuses on recent molecular data from protostomes, discusses the original complexity of the bilaterian forebrain neurosecretory system, provides an evolutionary scenario for the emergence of the vertebrate preoptic area/hypothalamus/neurohypophysis and suggests a possible function for an ancient set of sensory-neurosecretory cells present in the medial neurosecretory bilaterian forebrain.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1
ISSN:	1084-9521 1096-3634
DOI:	10.1016/j.semcdb.2007.04.007