Cephalochordates: A window into vertebrate origins.
Curr Top Dev Biol
; 141: 119-147, 2021.
Article
em En
| MEDLINE
| ID: mdl-33602486
ABSTRACT
How vertebrates evolved from their invertebrate ancestors has long been a central topic of discussion in biology. Evolutionary developmental biology (evodevo) has provided a new tool-using gene expression patterns as phenotypic characters to infer homologies between body parts in distantly related organisms-to address this question. Combined with micro-anatomy and genomics, evodevo has provided convincing evidence that vertebrates evolved from an ancestral invertebrate chordate, in many respects resembling a modern amphioxus. The present review focuses on the role of evodevo in addressing two major questions of chordate evolution (1) how the vertebrate brain evolved from the much simpler central nervous system (CNS) in of this ancestral chordate and (2) whether or not the head mesoderm of this ancestor was segmented.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vertebrados
/
Encéfalo
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Sistema Nervoso Central
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Cordados não Vertebrados
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Evolução Biológica
Limite:
Animals
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article