A new heart for a new head in vertebrate cardiopharyngeal evolution.
Nature
; 520(7548): 466-73, 2015 Apr 23.
Article
em En
| MEDLINE
| ID: mdl-25903628
ABSTRACT
It has been more than 30 years since the publication of the new head hypothesis, which proposed that the vertebrate head is an evolutionary novelty resulting from the emergence of neural crest and cranial placodes. Neural crest generates the skull and associated connective tissues, whereas placodes produce sensory organs. However, neither crest nor placodes produce head muscles, which are a crucial component of the complex vertebrate head. We discuss emerging evidence for a surprising link between the evolution of head muscles and chambered hearts - both systems arise from a common pool of mesoderm progenitor cells within the cardiopharyngeal field of vertebrate embryos. We consider the origin of this field in non-vertebrate chordates and its evolution in vertebrates.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Vertebrados
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Região Branquial
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Evolução Biológica
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Cabeça
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Coração
Limite:
Animals
Idioma:
En
Revista:
Nature
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Estados Unidos