Title of Invention

NOVEL EFFICIENT TRANSFORMATION METHOD FOR SUNFLOWER AND OIL SEEDS BASED ON POSITIVE SELECTION

Abstract The invention describes a highly improved, reproducible and a consistent method of transformation and regeneration that results in obtaining 12-15% transgenic plants. The present invention relates to a method of selecting genetically transformed Sunflower explants based on their ability to utilize Xylose as a sole carbohydrate source. Further disclosed is the nucleic acid sequence of the Xylose Isomerase gene, vector construction for incorporation of the selection marker gene and the process of Agrobacterium Mediated Transformation of target host plant with the vector comprising the gene encoding the enzyme Xylose isomerase under the functional combination of the heterologous regulatory sequences. Also disclosed is the method of selecting the putative transformants post transformation with the said vector that possess a metabolic advantage of utilizing Xylose as a sole carbon source. Increased efficiency of regeneration, better growth and survival has been observed on subjection to the described method of positive selection. The subject invention alleviates the disadvantages of negative selection methods such as the undesired elimination of the transformed cells and the potential environmental harm caused due to the dispersal of the antibiotic and the herbicide resistant genes.
Full Text

Documents:

3956-CHENP-2008 AMENDED CLAIMS 11-04-2011.pdf

3956-CHENP-2008 AMENDED PAGES OF SPECIFICATION 11-04-2011.pdf

3956-CHENP-2008 FORM-3 11-04-2011.pdf

3956-CHENP-2008 FORM-5 11-04-2011.pdf

3956-chenp-2008 form-13 11-04-2011.pdf

3956-CHENP-2008 POWER OF ATTORNEY 11-04-2011.pdf

3956-CHENP-2008 CORRESPONDENCE OTHERS.pdf

3956-CHENP-2008 CORRESPONDENCE PO.pdf

3956-CHENP-2008 EXAMINATION REPORT REPLY RECEIVED 11-04-2011.pdf

3956-CHENP-2008 FORM-1.pdf

3956-CHENP-2008 FORM-13 29-07-2008.pdf

3956-CHENP-2008 FORM-13.pdf

3956-CHENP-2008 FORM-18.pdf

3956-CHENP-2008 PCT.pdf


Patent Number 248075
Indian Patent Application Number 3956/CHENP/2008
PG Journal Number 24/2011
Publication Date 17-Jun-2011
Grant Date 15-Jun-2011
Date of Filing 29-Jul-2008
Name of Patentee AVESTHAGEN LIMITED
Applicant Address DISCOVERER, 9TH FLOOR, INTERNATIONAL TECH PARK, WHITEFIELD ROAD, BANGALORE-560 066
Inventors:
# Inventor's Name Inventor's Address
1 PATELL, VILLOO, MORAWALA DISCOVERER, 9TH FLOOR, INTERNATIONAL TECH PARK, WHITEFIELD ROAD, BANGALORE-560 066
2 RAJYASHRI, K., R. DISCOVERER, 9TH FLOOR, INTERNATIONAL TECH PARK, WHITEFIELD ROAD, BANGALORE-560 066
PCT International Classification Number C12N15/82
PCT International Application Number PCT/IB2006/000491
PCT International Filing date 2006-01-12
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA