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Un nuevo corazón para una nueva cabeza en la evolución cardiofaríngea de los vertebrados
Rui Diogo1, Robert G Kelly2, Lionel Christiaen3
1Department of Anatomy, Howard University College of Medicine, Washington DC 20059, USA.
Nature
|April 24, 2015
Resumen
La cabeza de los vertebrados.
Área de la Ciencia:
- Biología del desarrollo evolutivo Biología del desarrollo evolutivo
- La genómica comparada es una genómica comparada.
- La craneogénesis es la craneogénesis.
Sus antecedentes:
- La novedad evolutiva de la cabeza de los vertebrados está relacionada con la cresta neural y los placodos craneales.
- La cresta neural forma el cráneo y el tejido conectivo; los placodos forman los órganos sensoriales.
- Los músculos de la cabeza, cruciales para la cabeza de los vertebrados, no se derivan de la cresta neural o los placodos.
Objetivo del estudio:
- Investigar el origen evolutivo de los músculos de la cabeza de los vertebrados.
- Explore el vínculo entre el músculo de la cabeza y la evolución del corazón de cámara.
- Rastrear la historia evolutiva del campo cardiofaríngeo.
Principales métodos:
- Revisión de las evidencias emergentes.
- La embriología comparada.
- El análisis filogenético.
Principales resultados:
- La evidencia emergente sugiere un vínculo entre el músculo de la cabeza y la evolución del corazón en cámara.
- Ambos sistemas se originan en un grupo de progenitores comunes del mesodermo en el campo cardiofaríngeo.
- Se considera el origen del campo cardiofaríngeo en cordados no vertebrados y la evolución en vertebrados.
Conclusiones:
- El campo cardiofaríngeo es clave para comprender la evolución de los músculos de la cabeza y el corazón de los vertebrados.
- Investigaciones adicionales sobre el campo cardiofaríngeo pueden iluminar la evolución de la cabeza de los vertebrados.
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