C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/29 (2006.01) A01H 1/00 (2006.01) A01H 3/00 (2006.01) A01H 5/00 (2006.01) C12N 5/10 (2006.01) C12N 15/82 (2006.01) C12N 15/90 (2006.01)
Patent
CA 2244229
The GAI gene of Arabidopsis thaliana has been cloned, along with mutant and homologue gene sequences. Expression of such genes in plants affects characteristics of the plants including growth. GAI expression inhibits growth of plants, which inhibition is antagonised by gibberellin (GA). Expression of gai mutants confers a dwarf phenotype which is GA-insensitive. Manipulation of expression of GAI and gai genes in plants results in tall or dwarfed plants. Dwarf plants are useful in particular for reduction in crop losses resulting from lodging.
Le gène GAI de l'Arabidopsis thaliana a été cloné, avec des séquences de gènes homologues et mutants. L'expression de ces gènes dans les plantes affecte les caractéristiques des plantes, y compris la croissance. L'expression du gène GAI inhibe la croissance des plantes, laquelle inhibition est antagonisée par la gibbérelline (GA). L'expression de gènes mutants gai confère un phénotype nain qui est insensible à la gibérelline. La manipulation de l'expression des gènes GAI et gai dans les plantes donne des plantes de haute taille et des plantes naines. Les plantes naines sont particulièrement utiles pour réduire les pertes de récoltes dues aux verses.
Carol Pierre
Harberd Nicholas Paul
Peng Jinrong
Richards Donald Ernest
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Pioneer Hi-Bred International Inc.
Plant Bioscience Limited
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