Rose containing flavone and malvidin, and method for...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/09 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2690754

The invention provides a rose characterized by comprising a flavone and malvidin added by a genetic modification method. The flavone and malvidin are typically produced by expression of a transferred flavone synthase gene, pansy flavonoid 3',5'-hydroxylase gene and anthocyanin methyltransferase gene. The flavone synthase gene is, for example a flavone synthase gene of the family Scrophulariaceae, and specifically it may be the flavone synthase gene of snapdragon of the family Scrophulariaceae, or the flavone synthase gene of torenia of the family Scrophulariaceae. The flavonoid 3',5'- hydroxylase gene is, for example, the pansy flavonoid 3',5'-hydroxylase gene. The anthocyanin methyltransferase gene is, for example, the methyltransferase gene of torenia of the family Scrophulariaceae.

L'invention porte sur une rose caractérisée par le fait qu'elle contient une flavone et une malvidine par une technique de recombinaison génétique. Typiquement, la flavone et la malvidine sont obtenues respectivement par l'expression d'un gène d'enzyme de synthèse de flavone et l'expression d'un gène de flavonoïde 3',5'-hydroxylase issu de la violette (Viola x wittrockiana) et un gène d'anthocyanine méthyltransférase, tous introduits dans la rose. Le gène d'enzyme de synthèse de flavone peut être un gène issu d'une plante appartenant à la famille Scrophulariaceae, tel qu'un gène issu de la gueule-de-loup commune (Scrophulariaceae, Antirrhinum majus) et un gène issu du torenia (Scrophulariaceae, Torenia hybrida). Le gène de flavonoïde 3',5'-hydroxylase peut être un gène issu de la violette (Viola x wittrockiana). Le gène d'anthocyanine méthyltransférase peut être un gène issu du torenia (Scrophulariaceae, Torenia hybrida).

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