Increased seed size and seed number through transgenic over...

A - Human Necessities – 01 – H

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A01H 1/00 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2633988

The present invention provides methods and compositions for increasing the seed size and/or seed number in plants. in particular, the methods and compositions provide for the over expression of a plant growth and/or development related or associated gene during embryo development. Transgenic plants transformed with genetic constructs having the plant growth and/or development associated gene under the control of an early phase-specific embryo promoter provides mature plants in the field that produce larger and/or more seeds. Methods for selection growth and development associated genes that provide transgenic plants with a higher yield phenotype are also provided.

La présente invention concerne des procédés et des compositions pour l'accroissement de la taille de graines et/ou du nombre de graines chez une plante. En particulier, les procédés et les compositions assurent la surexpression d'un gène associé ou lié à la croissance et/ou au développement d'une plante lors du développement embryonnaire précoce. Des plantes transgéniques transformées par des constructions génétiques comprenant le gène associé à la croissance et/ou au développement sous le contrôle d'un promoteur embryonnaire précoce spécifique de phase fournissent des plantes adultes en champ qui produisent des graines plus grosses et/ou plus nombreuses. L'invention concerne également des procédés pour la sélection de gènes associés à la croissance et au développement qui fournissent des plantes transgéniques avec un phénotype de rendement plus élevé.

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