domingo, 25 de noviembre de 2012

Genoteca - Ejemplo


Es un conjunto de clones en los que está contenido el genoma de un organismo. La construcción de una genoteca implica: aislar el genoma completo de la célula (obtención de ADN genómico), fraccionar el genoma en fragmentos de un tamaño apropiado, clonar cada fragmento en un vector, e introducir cada molécula recombinante en una célula hospedadora. Existen dos tipos de genotecas según contengan ADN genómico o ADNc:
Genoteca genómica: contiene el genoma de un organismo. Se emplea para aislar un gen determinado completo (con intrones y exones, en el caso de eucariotas) o par aclonar regiones reguladoras que no se transcriben (por ejemplo, promotores).
Genoteca de ADN copia:  está constituida por ADN copia, sintetizado, por acción de la transcriptasa inversa, a partir de los ARNm expresados en una célula, tejido u organismo


Se han elaborado genotecas tanto de ADNc como genómicas de variados agentes patógenos, lo que ha permitido un conocimiento de las bases moleculares de muchas enfermedades.



Referencias
http://es.scribd.com/doc/25597995/Fundamentos-de-Genetica-Aplicada                        
http://sian.inia.gob.ve/repositorio/noperiodicas/libros/La%20genoteca%20como%20herramienta%20de%20la%20biotecnolog%C3%ADa.pdf
  • Lectura recomendada: (Articulo científico que utiliza la tecnología  de la genoteca)

http://www.uaemex.mx/Red_Ambientales/docs/memorias/Extenso/CA/EC/CAC-06.pdf

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