Transgenic corn plants having seeds with modified cornstarch characteristics and method of making the transgenic corn plants
AssigneeIowa State University Research Foundation, Inc.
InventorsJay-lin Jane, Beiquan Mou, Christer Jansson, Chuanxin Sun
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Abstract
Cornstarch characteristics can be changed by expressing a non-corn plant starch branching enzyme in a corn plant. In a preferred embodiment, transgenic corn plants containing the barley starch branching enzyme IIa transgene was generated. Some transgenic corn plants produced seeds containing cornstarch with lowered gelatinization temperature and retrogradation rate while others produced seeds containing cornstarch with higher retrogradation rate when compared to non-transgenic corn plants.
Claims15
A transgenic corn plant, corn plant cell, or corn plant tissue comprising:
- a polynucleotide transgene that encodes barley starch branching enzyme (SBE) IIa comprising SEQ ID NO:2 wherein the expression of barley SBE IIa in the transgenic corn plant changes a cornstarch characteristic as compared to a plant of the same genetic background without the polynucleotide transgene.
Dependencies are inferred from the claim text.