Root cortex specific gene promoter

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) C12N 15/32 (2006.01)

Patent

CA 2228046

An isolated DNA molecule comprises a DNA promoter sequence which directs root cortex specific transcription of a downstream heterologous DNA segment in a plant cell. A DNA construct comprises an expression cassette comprising, in the 5' to 3' direction, a promoter of the present invention and a heterologous DNA segment positioned downstream from the promoter and operatively associated therewith. Transformed plants, such as tobacco plants, comprise transformed plant cells containing a heterologous DNA construct comprising an expression cassette as described above.

Molécule d'ADN isolée comprenant une séquence promoteur d'ADN qui détermine une transcription spécifique à une écorce de racine d'un segment d'ADN hétérologue aval dans une cellule de végétale. La configuration de l'ADN comprend une cassette d'expression présentant, dans la direction 5' à 3', un promoteur de la présente invention et un segment d'ADN hétérologue placés en aval à partir du promoteur et associé fonctionnellement à celui-ci. Les végétaux transformés, tels que des plants de tabac, comportent des cellules végétales transformées présentant une configuration d'ADN hétérologue comprenant une cassette d'expression telle que précédemment décrite.

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