Washington, DC
March 7, 2006
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United States Patent
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7,009,092
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Jane , et al. |
March 7, 2006 |
Transgenic corn plants having seeds with modified cornstarch
characteristics and method of making the transgenic corn plants
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.
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Inventors: |
Jane; Jay-lin
(Ames, IA); Mou; Beiquan (Salinas, CA);
Jansson; Christer (Vellentuna, SE); Sun; Chuanxin
(Uppsala, SE) |
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Assignee: |
Iowa State University
Research Foundation (Ames, IA) |
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Appl. No.: |
162948 |
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Filed: |
June 4, 2002 |
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Current U.S. Class: |
800/320.1; 800/284;
800/290; 800/278; 435/468; 435/101; 435/412 |
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Current Intern'l Class:
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C12N 15/29 (20060101);
C12N 15/82 (20060101); A01H 5/00 (20060101);
A01H 5/10 (20060101) |
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Field of Search:
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800/298,290,278,284,320.1
435/468,419,101,412 |
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