Patent ID: 7112718

Claim:
A transgenic plant cell which has been genetically modified, the plant cell comprising: a) in an antisense orientation relative to a promoter, a nucleic acid sequence of at least 500 nucleotides that hybridizes under high stringency conditions to a gene encoding an endogenous starch phosphorylase (R1) protein and that leads to the reduction, compared to the non-genetically modified plant cell, of the expression of one or more endogenous starch phosphorylase (R1) proteins; b) in an antisense orientation relative to a promoter, a nucleic acid sequence of at least 500 nucleotides that hybridizes under high stringency conditions to a gene encoding an endogenous branching enzyme I (BEI) protein and that leads to the reduction, compared to the non-genetically modified plant cell, of the expression of one or more endogenous branching enzyme I (BEI) proteins; and c) in an antisense orientation relative to a promoter, a nucleic acid sequence of at least 500 nucleotides that hybridizes under high stringency conditions to a gene encoding an endogenous branching enzyme II (BEII) protein and that leads to the reduction, compared to the non-genetically modified plant cell, of the expression of one or more endogenous branching enzyme II (BEII) proteins.