Nucleic acids that control plant development

Details Nucleic acids that control plant development Nucleic acids that control plant development

C - Chemistry, Metallurgy

12

N

C12N 15/29 (2006.01) A01H 1/04 (2006.01) A01H 5/00 (2006.01) C07K 14/415 (2006.01) C12N 1/21 (2006.01) C12N 5/04 (2006.01) C12N 5/10 (2006.01) C12N 15/56 (2006.01) C12N 15/63 (2006.01) C12N 15/82 (2006.01) C12N 15/84 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2406736

This invention relates to a method of modulating seed, endosperm, embryo and seedcoat development, flowering time, chromosomal DNA methylation, and transcription in plant by transformation with a gene encoding the Arabidopsis DMT protein (DEMETER, previously known as ATROPOS (ATR)). DMT represses endosperm production and is required for MEDEA transcription. The protein is related to 5-methylcytosine glycosylases and regulates transcription of target genes by demethylation.

La présente invention concerne la modulation du développement des semences, de l'endosperme, de l'embryon et de l'épisperme, la modulation du moment de floraison, de la méthylation de l'ADN chromosomique ainsi que la modulation de la transcription dans les plantes, par transformation d'un gène codant pour la protéine DMT de l'Arabidopsis (DEMETER, anciennement connu sous le nom d'ATROPOS (ATR)). La protéine DMT inhibe la production d'endosperme et elle est en outre nécessaire à la transcription de MEDEA. Cette protéine est apparentée aux 5-méthylcytosine glycolases et régule la transcription des gènes cibles par déméthylation.

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