Nucleic acid molecules encoding sucrose synthase-like...

C - Chemistry – Metallurgy – 12 – N

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Details

C12N 15/82 (2006.01) A01H 5/00 (2006.01) A01H 5/10 (2006.01) C12N 9/10 (2006.01) C12N 15/29 (2006.01)

Patent

CA 2611092

Described herein are inventions in the field of genetic engineering of plants, including isolated nucleic acid molecules encoding Sucrose Synthase-like (S US- like) polypeptides to improve agronomic, horticultural, and quality traits. This invention relates generally to nucleic acid sequences encoding proteins that are related to the presence of seed storage compounds in plants. More specifically, the present invention relates to SUS-like nucleic acid sequences encoding sugar and lipid metabolism regulator proteins and the use of these sequences in transgenic plants. In particular, the invention is directed to methods for manipulating sugar-related compounds and for increasing oil level and altering the fatty acid composition in plants and seeds. The invention further relates to methods of using these novel plant polypeptides to stimulate plant growth and/or to increase yield and/or composition of seed storage compounds.

L'invention se rapporte au domaine des transformations de plantes par génie génétique, et plus particulièrement à des molécules d'acide nucléique isolées codant pour des polypeptides de type saccharose (Sucrose Synthase-like:S US-like), destinées à améliorer les propriétés culturales, horticulturales et qualitatives des plantes. L'invention se rapporte de manière générale à des séquences d'acide nucléique codant pour des protéines qui sont associées à la présence dans les plantes de composés de réserve de la semence, et plus spécifiquement à des séquences d'acide nucléique "SUS-like" codant pour des protéines régulatrices du métabolisme des glucides et des lipides, ainsi qu'à l'utilisation de ces séquences dans des plantes transgéniques. L'invention concerne en particulier des procédés permettant de manipuler des composés associés aux glucides, et d'augmenter la teneur en huile, et de modifier la composition en acides gras des plantes et des semences. L'invention porte en outre sur des procédés d'utilisation de ces nouveaux polypeptide de plantes pour stimuler la croissance des plantes et/ou augmenter le rendement et/ou la teneur en composés de réserve des semences.

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