Transgenic plants with enhanced agronomic traits

A - Human Necessities – 01 – H

Patent

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Details

A01H 1/00 (2006.01) A01H 5/00 (2006.01) C12N 5/04 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2594228

This disclosure describes screening a population of transgenic plants derived from plant cells transformed with recombinant DNA for expression of proteins with homeobox domains to identify plant cells of specific transgenic events that are useful for imparting enhanced traits to transgenic crop plants. Traits include enhanced nitrogen use efficiency, increased yield, enhanced water use efficiency, enhanced tolerance to cold stress and/or improved seed compositions. Also disclosed are transgenic seeds for growing a transgenic plant having the recombinant DNA in its genome and exhibiting the screened enhance trait. Also disclosed are methods for generating seed and plants based on the transgenic events.

L'invention concerne le criblage d'une population de plantes transgéniques dérivées de cellules végétales transformées avec un ADN recombiné pour l'expression de protéines avec des domaines de boîte homéotique en vue de l'identification de cellules végétales d'événements transgéniques spécifiques utiles pour conférer des caractéristiques améliorées à des plantes de culture transgéniques. Les caractéristiques incluent une efficacité d'utilisation d'azote améliorée, un rendement accru, une efficacité d'utilisation d'eau améliorée, une tolérance accrue à l'agression par le froid et/ou des compositions de semences améliorées. L'invention concerne également des semences transgéniques destinées à la croissance d'une plante transgénique comprenant l'ADN recombiné dans son génome et présentant la caractéristique améliorée obtenue par criblage. Elle se rapporte en outre à des méthodes de génération de semences et de plantes sur la base des événements transgéniques.

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