Microspore-specific regulatory element

C - Chemistry – Metallurgy – 12 – N

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C12N 15/82 (2006.01) A01H 1/02 (2006.01) A01H 5/00 (2006.01)

Patent

CA 2205505

A novel DNA regulatory element that confers microspore-specific gene expression has been discovered, isolated, and characterized. The microspore- specific regulatory element can be used to control the expression of a foreign gene that disrupts the function of microspores. Thus, the control of pollen production can be achieved by using the microspore-specific regulatory element to produce male-sterile plants. Various methods can be used to restore male fertility in the F1 generation of such male-sterile plants. In addition, the microspore-specific regulatory element can be used to confer resistance to viral and insect pests.

On a découvert, isolé et caractérisé un nouvel élément régulateur constitué d'ADN qui permet une expression génétique spécifique des microspores. L'élément régulateur spécifique des microspores peut être utilisé pour contrôler l'expression d'un gène étranger qui altère les fonctions des microspores. Ainsi, on peut éviter la production de pollen en utilisant un élément régulateur spécifique des microspores pour produire des plantes mâles stériles. Différents procédés peuvent être utilisés pour restaurer la fertilité des mâles dans la génération F1 de ces plantes mâles stériles. En plus, l'élément régulateur spécifique des microspores peut être utilisé pour conférer une résistance aux virus et aux insectes nuisibles.

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