Patent ID: 6392120
Filing Date: 2002-05-21
Classification: C08B,C12N

Abstract:
A method of producing a transformed cereal crop comprising:(a) preparing a chimeric gene comprising a nucleic acid fragment having SEQ ID NOS: 5, 6, 11, 12, 15, 16, or 20 or portions of SEQ ID NOS: 6, 11, 12, 16, or 20, said nucleic acid fragment sufficient to suppress the endogenous expression of starch synthase enzyme I or b, operably linked in sense or antisense orientation on the upstream side to a promoter that directs gene expression in a cereal crop tissue, end operably linked on the downstream side to a regulatory sequence for transcriptional termination; and (b) transforming a cereal crop with the chimeric gene of step (a), wherein expression of said chimeric gene results in alteration of the fine structure of starch derived from a grain of said transformed cereal crop when compared to the fine sancture of starch derived from a cereal crop not possessing said chimeric gene.