Conditionally male-fertile plants and methods and...

A - Human Necessities – 01 – H

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A01H 1/02 (2006.01) A01H 1/04 (2006.01) A01H 5/00 (2006.01) A01N 37/06 (2006.01) A01N 37/42 (2006.01) A01N 61/00 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2232623

Fertility can be restored to certain male-sterile plants by exogenous jasmonate or a related compound. Methods are disclosed for identifying and producing "conditionally male-fertile" plants are produced by mutations that interfere with normal jasmonic acid metabolism. The ability to produce and/or identify conditionally male-fertile plants and to rescue the fertility of these plants by simple application of a chemical compound forms the basis for a conditional male-fertility system that is broadly applicable to hybrid breeding of crop and horticultural plants.

Il est possible de rendre leur fécondité à certaines plantes à stérilité mâle à l'aide de jasmonate exogène ou d'un composé apparenté, et on présente des procédés d'identification et de production de plantes "à fécondité mâle conditionnelle" obtenues par des mutations interférant avec le métabolisme normal de l'acide jasmonique. La capacité d'identification et/ou de production de plantes "à fécondité mâle conditionnelle" et le rétablissement de leur fécondité par une simple application d'un composé chimique constitue la base d'un système de fécondité mâle conditionnelle largement applicable à la culture hybride de plantes de grande culture et horticoles.

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