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Las fenocopias inducidas con ARN antisentido identifican el gen sin alas
Cell
|August 14, 1987
Resumen
El gen sin alas en el desarrollo de Drosophila es crucial para la cooperación celular. El ARN Antisense confirma que una transcripción específica ejecuta la función sin alas, identificándola como el homólogo de Drosophila del ratón int-1.
Área de la Ciencia:
- Biología del desarrollo Biología del desarrollo.
- Genética La genética.
- Biología Molecular Biología Molecular
Sus antecedentes:
- Se sabe que el gen sin alas en Drosophila melanogaster juega un papel en la cooperación celular durante el desarrollo.
- El mecanismo molecular preciso y la transcripción específica responsable de la función sin alas no fueron completamente aclarados.
Objetivo del estudio:
- Para confirmar la función de una transcripción específica de 3 kb en la ejecución del papel del gen sin alas.
- Para establecer la identidad del gen sin alas con un homólogo de Drosophila clonado del gen int-1 del ratón.
Principales métodos:
- Inyección de ARN antisentido derivado de una transcripción de 3 kb en huevos de Drosophila de tipo salvaje.
- Análisis de secuencia de ADNc sin alas aislado.
- Comparación de la secuencia de ADNc sin alas aislada con el homólogo de Drosophila del ratón int-1 (Dint-1).
Principales resultados:
- La inyección del ARN antisentido de la transcripción de 3 kb produjo con éxito fenocopias mutantes sin alas en embriones de tipo salvaje.
- Se encontró que la secuencia de ADNc sin alas parcial aislada era idéntica a una parte de la secuencia Dint-1.
- Se confirmó que el homólogo de Drosophila del ratón int-1 (Dint-1) era idéntico al gen sin alas.
Conclusiones:
- La transcripción de 3 kb es definitivamente responsable de la función del gen sin alas en el desarrollo de la Drosophila.
- El gen sin alas es el homólogo de Drosophila del gen int-1 del ratón, lo que indica vías de desarrollo conservadas.
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