Pioneer Hi-bred International, Inc.

E.i. Dupont De Nemours and Company

Mycogen Plant Science, Inc.

Howard P Hershey

Marc C Albertsen

Yongzhong Wu

Tim Fox

Gary A Huffman

Mary Trimnell

Dale F Loussaert

Andrew Mark Cigan

Thomas D Sullivan

Peter H Quail

Alan H Christensen

Youngzhon Wu

Robert A Sharrock

Carl R Simmons

Michael W Lassner

Stephen M Allen

Lu Liu

Kanwarpal Singh Dhugga

Bruce Aaron Diner

Xiaomu Niu

Haiyin Wang

James F Wong

Kevin A Fengler

Douglas Brian Jordan

Timothy W Fox

Victor Llaca

Edward J Ralston

Shaojie Wang

Dexter Allan Chisholm

Gail K Donaldson

Xiao Song Tang

Carol D Katayama

Timothy D Stoner

Patrick Vernon Warren

Phillip Scott Kerr

Mei Guo

Erica Unger

Jeffrey T Trost

Yongzhon Wu

Perry Gerard Caimi

Janis M Keller

Tim W Fox

Andrew M Cigan

Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and active fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or active fragments or variants thereof, operably linked to a promoter, wherein expression of the polynucleotides modulates the male fertility of a plant. Various methods are provided wherein the level and/or activity of the sequences that influence male fertility is modulated in a plant or plant part.

Compositions and methods comprising male fertility sequences

Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are methods for maintaining a homozygous recessive condition and for repressing transmission of transgenes.

Dominant gene suppression transgenes and methods of using same

The invention provides isolated NUE (nitrogen utilization efficiency) nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering nitrogen utilization and/or uptake in plants. The invention further provides recombinant expression cassettes, host cells and transgenic plants.

Genes for enhancing nitrogen utilization efficiency in crop plants

Nucleotide sequences mediating male fertility in plants are described, with DNA molecule and amino acid sequences set forth. Promoter sequences and their essential regions are also identified. The nucleotide sequences are useful in mediating male fertility in plants. In one such method, the homozygous recessive condition of male sterility causing alleles is maintained after crossing with a second plant, where the second plant contains a restoring transgene construct having a nucleotide sequence which reverses the homozygous condition. The restoring sequence is linked with a hemizygous sequence encoding a product inhibiting formation or function of male gametes. The maintainer plant produces only viable male gametes which do not contain the restoring transgene construct. Increase of the maintainer plant is also provided by self-fertilization, and selection for seed or plants which contain the construct.

Nucleotide sequences mediating plant male fertility and method of using same

This invention relates to isolated nucleic acid fragments encoding high affinity nitrate transport components. The invention also relates to the construction of recombinant DNA constructs encoding all or a portion of nitrate transport components, in sense or antisense orientation, wherein expression of the recombinant DNA construct may alter levels of the nitrate transport components in a transformed host cell.

Nitrate transport components

Growing community of inventors

West Chester, PA, United States of America

Howard P Hershey