Patent ID: 7655836
Filing Date: 2010-02-02
Classification: C12N,Y02E

Abstract:
1. A method of producing a plant having sink tissue which has increased sweetness or an increased total or soluble carbohydrate content or an increased content of an endogenous carbohydrate as compared to a corresponding sink tissue of a control plant, the method comprising selecting from a plurality of transgenic plants which comprise in their nucleome a polynucleotide that is operably connected to a transcriptional control element and that encodes a sucrose isomerase that catalyzes the conversion of sucrose to an alien sugar, a plant that produces the sucrose isomerase at a level or functional activity so that 1) the total or soluble carbohydrate content or sweetness or 2) the content of the endogenous carbohydrate of the sink tissue of the transgenic plant is increased as compared to that of the corresponding sink tissue of the control plant, wherein the sucrose is an endogenous sugar of the plant, wherein the alien sugar is selected from the group consisting of isomaltulose and trehalulose, and wherein the plant is sugarcane, which is a plant capable of accumulating sucrose as a storage product.