Sheila E Maddock

US Patent:

6388066, May 14, 2002

Filed:

Sep 27, 1999

Appl. No.:

09/405779

Inventors:

Wesley B. Bruce - Urbandale IA
Sheila E. Maddock - Johnston IA

Assignee:

Pioneer Hi-Bred International, Inc. - Des Moines IA

International Classification:

C07H 2104

US Classification:

536 241, 4353201, 435468, 800278

Abstract:

This invention discloses to compositions and methods for altering the characteristic pattern of expression associated with a promoter. More particularly the constitutive expression pattern associated with the small synthetic promoter, Rsyn7 is modified so that expression of a heterologous nucleotide sequence operably linked to the Rsyn7 promoter is in a tissue localized manner. This modification of the Rsyn7 pattern of expression occurs as a result of the addition of matrix attachment region DNA sequences to the flanks or 5â and 3â ends of an expression cassette comprising the Rsyn7 promoter operably linked to a heterologous nucleotide sequence of interest. DNA constructs, transformed plant cells and transformed plants are provided.

US Patent:

7799566, Sep 21, 2010

Filed:

Nov 16, 2006

Appl. No.:

11/560550

Inventors:

Keith S. Lowe - Johnston IA, US
Yumin Tao - Fremont CA, US
William J. Gordon-Kamm - Urbandale IA, US
Carolyn A. Gregory - Tega City SC, US
John A. McElver - Durham NC, US
George J. Hoerster - Des Moines IA, US
Sheila E. Maddock - Johnston IA, US

Assignee:

Pioneer Hi-Bred International, Inc. - Johnston IA

International Classification:

C12N 15/82
C12N 15/29
A01H 4/00

US Classification:

435468, 435419, 4353201, 4352523, 536 236

Abstract:

The invention provides isolated polynucleotides, specifically Cyclin D polynucleotides, and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants for the purpose of increasing transformation efficiency.

US Patent:

20030213016, Nov 13, 2003

Filed:

Jan 21, 2003

Appl. No.:

10/348110

Inventors:

Keith Lowe - Johnston IA, US
Yumin Tao - Urbandale IA, US
William Gordon-Kamm - Urbandale IA, US
Carolyn Gregory - Greenlawn NY, US
John McElver - Durham NC, US
George Hoerster - Des Moines IA, US
Sheila Maddock - Johnston IA, US

Assignee:

Pioneer Hi-Bred International, Inc.

International Classification:

A01H001/00
C12N015/82

US Classification:

800/287000, 800/294000, 435/469000

Abstract:

The invention provides isolated polynucleotides and their encoded proteins that are involved in cell cycle regulation. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions. The present invention provides methods and compositions relating to altering cell cycle protein content and/or composition of plants.

US Patent:

20070143880, Jun 21, 2007

Filed:

Jun 29, 2006

Appl. No.:

11/427371

Inventors:

Dennis L. Bidney - Urbandale IA, US
Sheila E. Maddock - Johnston IA, US
Xinli E. Wu - Johnston IA, US

Assignee:

PIONEER HI-BRED INTERNATIONAL, INC. - Johnston IA

International Classification:

A01H 1/00
C12N 15/82

US Classification:

800294

Abstract:

The present invention provides methods and compositions which deliver via microinjection directly into the embryo sac. At the time of injection, the embryo sac can comprise an egg cell, or alternatively, the embryo sac can be fertilized and comprise either a zygote or an embryo. Once inside the embryo sac, the harboring a T-DNA having a polynucleotide of interest can express of the polynucleotide of interest in the plant. Further, the can transfer the T-DNA having the polynucleotide of interest to the plant nucleus to produce a transformed plant. The polynucleotide of interest may be stably integrated into the genome of the egg cell, zygote, embryo, or endosperm, and any tissue, plant part, and/or plant generated therefrom.

US Patent:

20070143881, Jun 21, 2007

Filed:

Jun 30, 2006

Appl. No.:

11/427947

Inventors:

Dennis L. Bidney - Urbandale IA, US
Sheila E. Maddock - Johnston IA, US
Xinli E. Wu - Johnston IA, US

Assignee:

PIONEER HI-BRED INTERNATIONAL, INC. - Johnston IA

International Classification:

A01H 1/00

US Classification:

800294

Abstract:

Methods and compositions using a site-specific integration system are combined with methods and compositions which deliver compositions via microinjection directly to the embryo sac of a plant. The methods allow for various components of the site-specific recombination system to be introduced into the cellular environment of the embryo sac a composition comprising at least one component of the site-specific recombination system is injected into an embryo sac, providing improved efficiency of expression, recombination, integration, exchange, excision and/or inversion of a polynucleotide of interest. The polynucleotide of interest may be stably integrated into the genome of the egg cell, zygote, embryo, or endosperm, and tissues, plant parts, and/or plants produced therefrom. Cells, egg cells, zygotes, embryos, endosperm, tissues, seeds, and/or plants produced by the methods and comprising the polynucleotide(s) of interest are also provided.

US Patent:

20080216191, Sep 4, 2008

Filed:

Sep 19, 2006

Appl. No.:

11/532921

Inventors:

Joanne E. Barton - Wilmington DE, US
Sheila E. Maddock - Johnston IA, US
Xinli E. Wu - Johnston IA, US
Mark E. Williams - Newark DE, US
Tanveer Hussain - Urbandale IA, US
William J. Gordon-Kamm - Urbandale IA, US

Assignee:

Pioneer Hi-Bred International, Inc. - Johnston IA
E.I. Du Pont De Nemours and Company - Wilmington DE

International Classification:

A01H 1/08
A01H 5/00

US Classification:

800276, 8003201

Abstract:

Methods for producing doubled haploid corn () plants, seeds, and plant cells are provided.

US Patent:

20130205438, Aug 8, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/832011

Inventors:

E I DU PONT DE NEMOURS AND COMPANY - Wilmington DE, US
PIONEER HI BRED INTERNATIONAL INC - Johnston IA, US
Tanveer Hussain - Urbandale IA, US
Sheila E. Maddock - Johnston IA, US
Mark E. Williams - Newark DE, US
Xinli Wu - Johnston IA, US

Assignee:

PIONEER HI BRED INTERNATIONAL INC - Johnston IA
E I DU PONT DE NEMOURS AND COMPANY - Wilmington DE

International Classification:

A01H 1/08

US Classification:

800266, 800275

Abstract:

Methods for producing doubled haploid corn () plants, seeds, and plant cells are provided.

US Patent:

59627697, Oct 5, 1999

Filed:

Jul 14, 1997

Appl. No.:

8/893049

Inventors:

Marc C. Albertsen - West Des Moines IA
John A. Howard - College Station TX
Sheila Maddock - Johnston IA

Assignee:

Pioneer Hi-Bred International, Inc. - Des Moines IA

International Classification:

A01H 500
A01H 102
C12N 1512
C12N 1582

US Classification:

800303

Abstract:

Male-sterile plants can be produced by increasing the endogenous concentration of avidin in the plant tissues. This effect can be achieved by producing transgenic plants containing an expression vector in which a promoter is operably linked to a DNA sequence encoding avidin. Methods for restoring male fertility are disclosed. Additionally, methods for production of seeds with one or more desired grain traits are provided.