Patents Assigned to Dekalb Genetics Corporation
  • Patent number: 7741538
    Abstract: Methods and compositions for the expression of transgenes in monocot plants including maize are disclosed. In the invention, gene silencing is avoided by use of monocot-homeologous sequences from plants of the genus Coix for transformation. Included in these transgene sequences are Coix promoters, enhancers, coding sequences and terminators. Suitable alternatives to maize-derived transgenes are desirable for expression in maize in that homology-based gene silencing can limit or effectively eliminate transgene expression.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: June 22, 2010
    Assignee: Dekalb Genetics Corporation
    Inventors: Alan L. Kriz, Michael H. Luethy, Dale A. Voyles
  • Patent number: 7705215
    Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: April 27, 2010
    Assignee: Dekalb Genetics Corporation
    Inventors: Thomas R. Adams, Paul C. Anderson, Sheryl A. Chambers, Paul S. Chomet, Richard J. Daines, Christopher E. Flick, Kimberly Glassman, William J. Gordon-Kamm, Albert P. Kausch, Lucille B. Laccetti, Peggy G. Lemaux, Catherine J. Mackey, Mary Lou Mangano, Michael T. Mann, James V. O'Brien, Emil M. Orozco, Peter Orr, Thomas B. Rice, T. Michael Spencer, William G. Start, Michael A. Stephens, Clayton S. Vetsch, David A. Walters, Donald S. Walters, Nancy G. Willetts, Susan J. Zachwieja
  • Patent number: 7615685
    Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs an EPSP synthase gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide glyphosate. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen. This invention also relates to methods of producing human or animal food from the transformed maize plants.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: November 10, 2009
    Assignee: Dekalb Genetics Corporation
    Inventors: Ronald C. Lundquist, David A. Walters, Julie A. Kirihara
  • Patent number: 7547820
    Abstract: The invention provides genetically engineered, preselected DNA sequences and methods of using them to alter the nutritional content of plant seed. Methods of the invention are directed to increasing the weight percent of at least one amino acid essential to the diet of animals, or increasing the starch content, of a plant. One such method involves stably transforming a cell of a plant with an a preselected DNA sequence encoding an RNA molecule substantially identical or complementary to a messenger RNA (mRNA) encoding a plant seed storage protein, preferably a seed storage protein which is deficient in at least one amino acid essential to the diet of animals. An alternative method employs stably transforming cells with at least two preselected DNA sequences, one of which encodes an RNA molecule substantially identical or complementary to a messenger RNA (mRNA) encoding a plant seed storage protein, and the other preselected DNA molecule which encodes a preselected polypeptide.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: June 16, 2009
    Assignee: Dekalb Genetics Corporation
    Inventors: Julie A. Kirihara, Kenneth A. Hibberd, Janice Anthony
  • Patent number: 7279624
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I015011. This invention thus relates to the plants, seeds and tissue cultures of the variety I015011, and to methods for producing a corn plant produced by crossing a corn plant of variety I015011 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I015011 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I015011, and also to the SSR and isozyme typing profiles of corn variety I015011.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 9, 2007
    Assignee: DeKalb Genetics Corporation
    Inventor: Thomas B. Carlson
  • Patent number: 7256283
    Abstract: The invention provides isolated gamma coixin promoters useful for the expression of heterologous coding sequences in transgenic plants. Further provided by the invention are transgenic plants comprising such promoters, expression constructs for the introduction of heterologous coding sequences into plants, and methods of using the plants and nucleic acids provided by the invention.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: August 14, 2007
    Assignee: Dekalb Genetics Corporation
    Inventors: Alan L. Kriz, Michael H. Luethy, Dale A. Voyles
  • Patent number: 7211713
    Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: May 1, 2007
    Assignee: DeKalb Genetics Corporation
    Inventors: Ronald C. Lundouist, David A. Walters, Julie A. Kirihara
  • Patent number: 7205459
    Abstract: According to the invention, there is provided an inbred corn plant designated LIZL5. This invention thus relates to the plants, seeds and tissue cultures of the inbred corn plant LIZL5, and to methods for producing a corn plant produced by crossing the inbred corn plant LIZL5 with itself or with another corn plant, such as another inbred. This invention further relates to corn seeds and plants produced by crossing the inbred plant LIZL5 with another corn plant, such as another inbred, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of the inbred corn plant LIZL5, and also to the SSR and genetic isozyme typing profiles of inbred corn plant LIZL5. This invention further relates to methods of transforming the inbred LIZL5 and cells thereof, transformed plants produced by these methods, progeny transgenic plants, and seed derived therefrom.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 17, 2007
    Assignee: DeKalb Genetics Corporation
    Inventors: James R. Larkins, David D. Songstad, William L. Petersen, Hongyi Zhang, Michael T. Mann, T. Michael Spencer, Nancy G. Willetts
  • Patent number: 7205460
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I026458. This invention thus relates to the plants, seeds and tissue cultures of the variety I026458, and to methods for producing a corn plant produced by crossing a corn plant of variety I026458 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I026458 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I026458, and also to the SSR and isozyme typing profiles of corn variety I026458.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: April 17, 2007
    Assignee: DeKalb Genetics Corporation
    Inventor: Francis L. Garing
  • Patent number: 7173171
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I180580. This invention thus relates to the plants, seeds and tissue cultures of the variety I180580, and to methods for producing a corn plant produced by crossing a corn plant of variety I180580 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I180580 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I180580, and also to the SSR and isozyme typing profiles of corn variety I180580.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: February 6, 2007
    Assignee: DeKalb Genetics Corporation
    Inventor: Marvin L. Boerboom
  • Patent number: 7169981
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I015036. This invention thus relates to the plants, seeds and tissue cultures of the variety I015036, and to methods for producing a corn plant produced by crossing a corn plant of variety I015036 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I015036 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I015036, and also to the SSR and isozyme typing profiles of corn variety I015036.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 30, 2007
    Assignee: DeKalb Genetics Corporation
    Inventor: Thomas B. Carlson
  • Patent number: 7141724
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I450436. This invention thus relates to the plants, seeds and tissue cultures of the variety I450436, and to methods for producing a corn plant produced by crossing a corn plant of variety I450436 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I450436 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I450436, and also to the SSR and isozyme typing profiles of corn variety I450436.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: November 28, 2006
    Assignee: DeKalb Genetics Corporation
    Inventor: James Larkins
  • Patent number: 6960709
    Abstract: The invention provides preselected DNA sequences and methods of using them to alter the nutritional content of plant seed. Methods of the invention are directed to increasing the weight percent of an amino acid essential to the diet of animals, or increasing the starch content, of a plant. One method involves stably transforming a cell of a plant with a preselected DNA sequence encoding an RNA molecule substantially identical or complementary to a messenger RNA encoding a plant seed storage protein. An alternative method employs stably transforming cells with at least two preselected DNA sequences, one of which encodes an RNA molecule substantially identical or complementary to a messenger RNA (mRNA) encoding a plant seed storage protein, and the other preselected DNA molecule which encodes a preselected polypeptide. The transformed cells are used to generate fertile transgenic plants and seeds, which are characterized by expression of the preselected DNA sequence.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: November 1, 2005
    Assignee: DeKalb Genetics Corporation
    Inventors: Julie A. Kirihara, Kenneth A. Hibberd, Janice Anthony
  • Patent number: 6946587
    Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminceous cereal plants which have not proven stably transformable by other techniques.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 20, 2005
    Assignee: DeKalb Genetics Corporation
    Inventors: Ronald C. Lundquist, David A. Walters
  • Patent number: 6812388
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I244225. This invention thus relates to the plants, seeds and tissue cultures of the variety I244225, and to methods for producing a corn plant produced by crossing a corn plant of variety I244225 with itself or with another corn plant, such as a plant of another variety. This invention furthers relates to corn seeds and plants produced by crossing plants of variety I244225 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I244225, and also to the SSR and isozyme typing profiles of corn variety I244225.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: November 2, 2004
    Assignee: DeKalb Genetics Corporation
    Inventor: Donn P. Cummings
  • Patent number: 6809244
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I363128. This invention thus relates to the plants, seeds and tissue cultures of the variety I363128, and to methods for producing a corn plant produced by crossing a corn plant of variety I363128 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I363128 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I363128, and also to the SSR and isozyme typing profiles of corn variety I363128.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: October 26, 2004
    Assignee: DeKalb Genetics Corporation
    Inventor: Billy Woodruff
  • Patent number: 6806409
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I501150. This invention thus relates to the plants, seeds and tissue cultures of the variety I501150, and to methods for producing a corn plant produced by crossing a corn plant of variety I501150 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I501150 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I501150, and also to the SSR and isozyme typing profiles of corn variety I501150.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: October 19, 2004
    Assignee: DeKalb Genetics Corporation
    Inventor: Michael L. Floyd
  • Patent number: 6803499
    Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: October 12, 2004
    Assignee: DeKalb Genetics Corporation
    Inventors: Paul C. Anderson, Christopher E. Flick, William J. Gordon-Kamm, Albert P. Kausch, Catherine J. Mackey, Emil M. Orozco, Peter Orr, Michael A. Stephens, David A. Walters, Donald S. Walters
  • Patent number: 6777589
    Abstract: This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stablefs transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: August 17, 2004
    Assignee: DeKalb Genetics Corporation
    Inventors: Ronald C. Lundquist, David A. Walters
  • Patent number: 6762344
    Abstract: The invention is directed to a method of breeding maize using female plants having a transgene encoding an EPSPS enzyme where the female plants are female reproductively tolerant to treatment with glyphosate but can be made male sterile upon treatment with glyphosate.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: July 13, 2004
    Assignee: DeKalb Genetics Corporation
    Inventors: Michael Spencer, Rita Mumm, J. Jefferson Gwyn, David McElroy, Michael A. Stephens