Rose containing flavone and delphinidin, 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 2691156

The invention provides a rose characterized by comprising a flavone and delphinidin added by a genetic modification method. The flavone and delphinidin are typically produced by expression of a transferred flavone synthase gene and flavonoid 3',5'-hydroxylase gene, respectively. 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 (Viola x wittrockiana) flavonoid 3',5'-hydroxylase gene.

L'invention porte sur une rose caractérisée par le fait qu'elle contient une flavone et une delphinidine par une technique de recombinaison génétique. De façon typique, la flavone et la delphinidine sont obtenues par l'expression respectivement d'un gène d'enzyme de synthèse de flavone et d'un gène de flavonoïde 3',5'-hydroxylase, tous deux 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).

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