Modification of plant fibres

Details Modification of plant fibres Modification of plant fibres

C - Chemistry, Metallurgy

12

N

C12N 15/29 (2006.01) A01H 5/00 (2006.01) A01H 5/10 (2006.01) C07K 14/415 (2006.01) C12N 5/10 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2339087

The invention relates to the isolation and characterisation of novel expansin gene sequences from heterologous and homologous tree species and re- introducing such novel genes into trees so as to alter expansin levels. Six novel genes have been identified. Eucalyptus has also been transformed using the cucumber EX29 sequence (GenBank, Accession No. U30382 - Known as Cs-EXP1). A change in the plant height and internode length was observed compared with control plants.

L'invention concerne l'isolement et la caractérisation de nouvelles séquences du gène d'expansine à partir d'espèces d'arbres hétérologues et homologues et la réintroduction de ces nouveaux gènes dans des arbres afin de modifier les niveaux d'expansine. Six nouveaux gènes ont été identifiés. L'eucalyptus a aussi été transformé à l'aide de la séquence EX29 du concombre (GenBank, No d'enregistrement U30382-connu sous l'appellation Cs-EXP1). Un changement de la hauteur de la plante et de la longueur internodale a été observé comparé à des plantes témoins.

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