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Una secuencia de todo el genoma altamente anotada de un individuo coreano
Jong-Il Kim1, Young Seok Ju, Hansoo Park
1Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul 110-799, Korea.
Nature
|July 10, 2009
Resumen
Este estudio presenta la primera secuencia de genoma completo altamente anotada para un individuo coreano (AK1). Esto proporciona datos valiosos para comprender la diversidad genética humana y los posibles fenotipos médicos.
Área de la Ciencia:
- La genómica es la genómica.
- Genética Humana Genética Humana.
- La bioinformática es la bioinformática.
Sus antecedentes:
- La secuenciación del genoma personal está avanzando rápidamente.
- Las secuencias anteriores del genoma completo representaban una diversidad étnica limitada (africana, europea, china).
Objetivo del estudio:
- Proporcionar una secuencia de genoma completo altamente anotada para un individuo coreano (AK1).
- Ampliar la representación de la diversidad étnica humana en las bases de datos genómicas.
- Identificar las variaciones genéticas y los posibles fenotipos médicos.
Principales métodos:
- Enfoque combinado: secuenciación de escopeta de genoma completo (cobertura de 27,8x), secuenciación de cromosomas artificiales bacterianos dirigidos y hibridación genómica comparativa de alta resolución.
- Utilizó microarrays personalizados con más de 24 millones de sondas.
- Alineación con la referencia NCBI y análisis de los polimorfismos de nucleótido único (SNPs) y los polimorfismos de inserción/eliminación (indels).
Principales resultados:
- Generó una secuencia de genoma completo altamente anotada para el individuo coreano AK1.
- Se identificaron aproximadamente 3,45 millones de polimorfismos de nucleótido único (SNP), incluidos 10,162 SNPs no sinónimos.
- Se detectaron 170.202 polimorfismos de inserción/eliminación (indels) y variantes confiables de número de copias.
- Fenotipos médicos potenciales anotados asociados con las variaciones genéticas identificadas.
Conclusiones:
- La secuencia del genoma AK1 enriquece la diversidad de los datos disponibles del genoma humano.
- La integración de diversas secuencias de todo el genoma ayuda a comprender la ascendencia genética, la migración y la dinámica de la población.
- Las variaciones identificadas proporcionan una base para futuros estudios clínicos y genéticos de población.
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