Promotor sequence and gene construct for increasing crop...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

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

Patent

CA 2692918

The present invention relates to a SP3D promotor sequence, capable of directing transcription of a downstream SP3D gene that is operably linked to said promotor sequence, wherein the promotor sequence is derived from a species of the Solanaceae family having a sympodial index of 2, for reducing sympodial index in plants having a sympodial index of 3 or more. The invention also relates to methods for providing plants of the Solanaceae family, in particular S. lycopersicum, having a reduced sympodial index comprising of introducing into the genome of said plants a promotor sequence according to any of the claims 1-8 in operable linkage with a downstream SP3D gene, or introducing into said plants a gene construct according to any of the claims 9 to 15, such that the sympodial index of the plant with the promotor sequence or gene construct is reduced as compared to the plant without said promotor sequence or gene construct, and to plants obtainable by said methods.

La présente invention porte sur une séquence promoteur SP3D, apte à diriger une transcription d'un gène SP3D aval lié de façon opérationnelle à la séquence promoteur. La séquence promoteur est issue d'une espèce de la famille des Solanaceae d'un indice sympodial de 2, pour réduire l'indice sympodial de plantes d'un indice sympodial de 3 ou plus. L'invention porte également sur des procédés pour fournir des plantes de la famille des Solanaceae, en particulier S. lycopersicum, d'indice sympodial réduit. Les procédés consistent à introduire dans le génome des plantes une séquence promoteur selon l'une des revendications 1 à 8 dans une liaison opérationnelle à gène SP3D aval ; ou un produit de construction génique selon l'une des revendications 9 à 15, tel que l'indice sympodial de la plante dont la séquence promoteur ou le produit de construction génique est réduit par rapport à un plant sans la séquence promoteur ou le produit de construction génique. L'invention porte également sur des plants pouvant être obtenus par les procédés.

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