Dehiscence gene and methods for regulating dehiscence

Details Dehiscence gene and methods for regulating dehiscence Dehiscence gene and methods for regulating dehiscence

C - Chemistry, Metallurgy

12

N

C12N 15/29 (2006.01) A01H 4/00 (2006.01) A01H 5/00 (2006.01) C07K 14/415 (2006.01) C12N 15/82 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2399900

The present invention is directed to the prevention of the dispersal of seeds through the process of dehiscence (pod shattering), which leads to significant seed loss during harvesting of crops. We have identified and characterized the SGT10166 gene in Arabidopsis thaliana and mutations of the gene that prevent dehiscence of the mature fruit. The gene encodes a protein that was found to be similar to the basic Helix-loop-Helix class of transcription factors. The expression pattern of the gene and the phenotype of the mutant plants indicates its likely role in enabling silique dehiscence.

L'invention ambitionne d'éviter la dispersion de graines dans le procédé de déhiscence (égrenage prématuré des gousses), entraînant une perte importante de graines lors de la récolte de cultures. Nous avons identifié et caractérisé le gène <i>SGT10166</i> chez l'<i>Arabidopsis thaliana</i> et les mutations du gène permettant d'empêcher la déhiscence du fruit mûr. Le gène code pour une protéine qui s'est avérée semblable à la classe de base hélice-boucle-hélice de facteurs de transcription. Le modèle d'expression du gène et du phénotype de plantes mutantes indique son rôle prometteur dans l'activation de la déhiscence de siliques.

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