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CO-SUPPRESSION [1 record]

Record 1 2012-11-23

English

Subject field(s)
  • Plant Biology
  • Genetics
CONT

In plants, the introduction of an extra copy of a gene by genetic engineering often results in the opposite of the intended result: instead of increasing gene expression, the introduction gene suppresses its own expression and that of the original, resident copy of the gene. This phenomenon is known as co-suppression.

French

Domaine(s)
  • Biologie végétale
  • Génétique
CONT

Suite à la découverte de ce phénomène, un autre type d'inactivation de transgènes a été rapporté, mais pour lequel le terme «cosuppression» n'était plus approprié, les gènes introduits n'ayant pas d'équivalents dans la plante.

Spanish

Campo(s) temático(s)
  • Biología vegetal
  • Genética
DEF

Fenómeno natural de silenciamiento génico, que probablemente se ha desarrollado como parte del sistema de defensa de las plantas frente a ataques víricos, y que ha adquirido importancia en el contexto de la transformación de plantas.

OBS

[A cosupresión] actúa inhibiendo la expresión de los transgenes con homología al ADN nativo a través de la interacción de los ARNm nativo y transgénico.

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