Evolution of the brain developmental plan: Insights from agnathans

In vertebrate evolution, the brain exhibits both conserved and unique morphological features in each animal group. Thus, the molecular program of nervous system development is expected to have experienced various changes through evolution. In this review, we discuss recent data from the agnathan lam...

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Bibliographic Details
Published in:Developmental biology Vol. 280; no. 2; pp. 249 - 259
Main Authors: Murakami, Yasunori, Uchida, Katsuhisa, Rijli, Filippo M., Kuratani, Shigeru
Format: Journal Article
Language:English
Published: United States Elsevier Inc 15.04.2005
Elsevier
Subjects:
Amphioxus
Animals
Biochemistry, Molecular Biology
Biological Evolution
Brain
Brain - embryology
Cerebellum
Cerebellum - embryology
Embryonic Development
Evolution
Evolution, Molecular
Gene Expression Regulation, Developmental
Genes, Homeobox
Genes, Homeobox - genetics
Hindbrain
Hox genes
Lamprey
Lampreys
Life Sciences
Models, Biological
Molecular biology
Nervous System
Nervous System - embryology
Regulatory genes
Rhombencephalon
Rhombencephalon - embryology
Telencephalon
Telencephalon - embryology
Time Factors
Vertebrates
Cerebellum
Brain
Vertebrates
Amphioxus
Regulatory genes
Telencephalon
Evolution
Hindbrain
Lamprey
Hox genes
ISSN:0012-1606, 1095-564X
Online Access:Get full text
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Summary:In vertebrate evolution, the brain exhibits both conserved and unique morphological features in each animal group. Thus, the molecular program of nervous system development is expected to have experienced various changes through evolution. In this review, we discuss recent data from the agnathan lamprey (jawless vertebrate) together with available information from amphioxus and speculate the sequence of changes during chordate evolution that have been brought into the brain developmental plan to yield the current variety of the gnathostome (jawed vertebrate) brains.
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ISSN:0012-1606
1095-564X
DOI:10.1016/j.ydbio.2005.02.008