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Evo-devo y una síntesis evolutiva en expansión: una teoría genética de la evolución morfológica
1Howard Hughes Medical Institute, Laboratory of Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA. sbcarrol@wisc.edu
Cell
|July 11, 2008
Resumen
La diversidad morfológica evoluciona alterando la expresión génica, principalmente a través de cambios en las secuencias cis-regulatorias. Esta teoría genética explica cómo la evolución da forma a la forma biológica mediante la modificación de proteínas conservadas y sus redes reguladoras.
Área de la Ciencia:
- Biología del desarrollo evolutivo Biología del desarrollo evolutivo
- Biología molecular La biología molecular.
- Genética La genética.
Sus antecedentes:
- Comprender la base genética de la evolución morfológica es un desafío biológico de larga data.
- La diversidad morfológica surge de cambios en las secuencias de genes y sus funciones.
Objetivo del estudio:
- Para esbozar ocho principios que guían una teoría genética de la evolución morfológica.
- Para revisar estudios recientes sobre la divergencia de especies que informan esta teoría.
Principales métodos:
- Derivación de los principios de la biología molecular y evolutiva del desarrollo.
- Revisión de estudios empíricos sobre la divergencia de las especies.
Principales resultados:
- Se propone una teoría genética de la evolución morfológica.
- La forma evoluciona alterando la expresión de las proteínas conservadas.
- Las mutaciones en las secuencias cis-reguladoras de los genes del desarrollo impulsan estos cambios.
Conclusiones:
- La evolución de la forma está impulsada en gran medida por cambios en la expresión génica.
- Las mutaciones cis-reguladoras en genes clave del desarrollo son fundamentales para la evolución morfológica.
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