Novel gene and uses therefor to modify pasture qualities of...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/53 (2006.01) A01H 3/04 (2006.01) A01H 5/00 (2006.01) C07H 21/00 (2006.01) C07K 16/40 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 9/02 (2006.01) C12N 9/04 (2006.01) C12N 15/29 (2006.01) C12N 15/63 (2006.01) C12N 15/82 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2438822

The invention relates generally to isolated leucoanthocyanidin reductase LAR polypeptides of the Reductase-Epimerase-Dehydrogenase (RED) protein family, and nucleic acid molecules encoding same and their use in regulating the biosynthesis and accumulation of proanthocyanidins in plants. The invention is further directed to isolated nucleic acid molecules of plants which encode leucoanthocyanidin reductases of the RED protein family. The isolated polypeptides and nucleic acid molecules of the present invention are useful for modifying the pasture quality of legumes, and, in particular, for producing bloat-safe forage crops, or crops having enhanced nutritional value, enhanced disease resistance or pest resistance, or enhanced malting qualities.

L'invention concerne d'une manière générale des polypeptides leucoanthocyanidines réductases LAR isolés de la famille de protéines Réductase-Epimerase-Déshydrogénase (RED), ainsi que des molécules d'acide nucléique les codant et leur utilisation pour réguler la biosynthèse ainsi que l'accumulation de proanthocyanidines dans des plantes. L'invention concerne également des molécules d'acide nucléique isolées de plantes qui codent des leucoanthocyanidines réductases de la famille de protéines RED. Les polypeptides isolés et les molécules d'acide nucléique de la présente invention sont utiles pour modifier la qualité du tapis pastoral de légumineuses, et notamment pour produire des cultures fourragères sans danger d'indigestion spumeuse, ou des cultures présentant une valeur nutritionnelle supérieure, une meilleure résistance aux maladies et une meilleure résistance aux parasites, ou de meilleures qualités maltières.

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