Patents by Inventor Xiaomu Niu
Xiaomu Niu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7741534Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions may comprise a novel nucleic acid sequence for a promoter with tissue specificity and/or cytokinin inducibility. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequence is also provided. The method comprises transforming a plant cell to contain a heterologous nucleotide sequence operably linked to the promoter of the present invention and regenerating a stably transformed plant from the transformed plant cell. Other methods provide for downregulation of cytokinin oxidase in a plant.Type: GrantFiled: March 20, 2008Date of Patent: June 22, 2010Assignee: Pioneer Hi-Bred International, Inc.Inventors: Xiaomu Niu, Haiyin Wang, Dwight T Tomes, Sabine Hantke, Norbert Brugiere
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Publication number: 20100017909Abstract: 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.Type: ApplicationFiled: August 15, 2006Publication date: January 21, 2010Inventors: Stephen M. Allen, Lu Liu, Victor Llaca, Kanwarpal Singh Dhugga, Xiaomu Niu, Kevin Fengler, Dale Loussaert, Haiyin Wang, Howard P. Hershey
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Publication number: 20090227013Abstract: This invention relates generally to the field of plant molecular biology. More specifically, this invention relates to methods and reagents for the temporally- and/or spatially-regulated expression of genes, particularly in plant seeds and related female reproductive tissue. Compositions comprise novel nucleotide sequences for a seed-preferred promoter known as eep2. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to one of the promoters of the present invention and regenerating a stably transformed plant from the transformed plant cell.Type: ApplicationFiled: May 11, 2009Publication date: September 10, 2009Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Timothy G. Helentjaris, Xiaomu Niu
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Publication number: 20090178159Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs particularly useful for altering root structure of plants, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter functional in a plant, wherein said polynucleotide encodes a polypeptide useful for altering plant root architecture.Type: ApplicationFiled: October 30, 2008Publication date: July 9, 2009Applicant: EI AND PIONEER HI-BRED INTERNATIONALInventors: Graziana Taramino, Hajime Sakai, Mai Komatsu, Xiaomu Niu
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Publication number: 20090158467Abstract: The present invention provides compositions and methods for modulating flowering time in plants. Maize RAP2.7 nucleotide sequences are disclosed which upon overexpression cause later flowering and when inhibited cause earlier flowering. Also disclosed is a DNA sequence which acts as a regulator/enhancer of RAP2.7, termed VGT1. This sequence does not code for any known protein, but acts as either a RNAi element or a regulatory DNA or RNA element that either directly regulates expression of flowering genes such as Rap2.7 or specifically targets expression of other genes which control flowering genes such as Rap2.7. This element this can be used as a sequence-based marker to identify inbred and hybrids which have altered maturity. Methods for expressing these nucleotide sequences in a plant for modifying maturity and flowering in plants are provided as well as expression constructs, vectors, transformed cells and plants.Type: ApplicationFiled: November 24, 2008Publication date: June 18, 2009Applicants: PIONEER HI-BRED INTERNATIONAL, INC., UNIVERSITY OF BOLOGNAInventors: DWIGHT TOMES, SILVIO SALVI, MICHELE MORGANTE, GIORGIO SPONZA, EDWARD BRUGGEMANN, XIAOMU NIU, BAILIN LI, ROBERTO TUBEROSA
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Patent number: 7544857Abstract: The invention relates to the regulation of gene expression, particularly to methods and compositions for regulating gene expression in plants. Expression cassettes comprising a polynucleotide molecule of interest operably linked to the Brachytic2 (Br2) promoter, or a functional fragment or variant thereof, are provided. Methods of using such expression cassettes, as well as plant cells, plant tissues, plants, and seeds transformed with these expression cassettes, are additionally provided. The methods and compositions find use in regulating the expression of a polynucleotide molecule of interest in a plant.Type: GrantFiled: October 30, 2006Date of Patent: June 9, 2009Assignees: Pioneer Hi-Bred International, Inc., The Curators of the University of MissouriInventors: Dilbag Multani, Xiaomu Niu, Dwight T. Tomes, Haiyin Wang, Deping Xu
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Publication number: 20090130685Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs particularly useful for altering root structure of plants, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter functional in a plant, wherein said polynucleotide encodes a polypeptide useful for altering plant root architecture.Type: ApplicationFiled: November 20, 2008Publication date: May 21, 2009Inventors: Graziana Taramino, Scott V. Tingey, Hajime Sakai, Stephen M. Allen, Dwight Tomes, Stanley Luck, Xiaomu Niu
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Publication number: 20090113570Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs particularly useful for altering root structure of plants, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter functional in a plant, wherein said polynucleotide encodes a polypeptide useful for altering plant root architecture.Type: ApplicationFiled: October 30, 2008Publication date: April 30, 2009Applicant: E.I. DU PONT AND PIONEER HI-BRED INTERInventors: Graziana Taramino, Hajime Sakai, Scott V. Tingey, Stephen M. Allen, Stanley Luck, Dwight Tomes, Xiaomu Niu
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Publication number: 20090106859Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions are novel nucleotide sequences for a root-preferred promoter and terminator isolated from the maize 6PGD coding region. A method for expressing a heterologous nucleotide sequence in a plant using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.Type: ApplicationFiled: July 31, 2008Publication date: April 23, 2009Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Xiaomu Niu, Bruce Drummond
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Publication number: 20090077691Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions are novel nucleotide sequences for a root-preferred promoter and terminator isolated from the maize MSY coding region. A method for expressing a heterologous nucleotide sequence in a plant using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.Type: ApplicationFiled: September 11, 2008Publication date: March 19, 2009Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Xiaomu Niu, Bruce Drummond
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Publication number: 20090064373Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs particularly useful for altering root structure of plants, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter functional in a plant, wherein said polynucleotide encodes a polypeptide useful for altering plant root architecture.Type: ApplicationFiled: August 29, 2008Publication date: March 5, 2009Inventors: GRAZIANA TARAMINO, SCOTT V. TINGEY, STEPHEN M. ALLEN, DWIGHT TOMES, STANLEY D. LUCK, HAJIME SAKAI, XIAOMU NIU
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Patent number: 7479584Abstract: The present invention provides compositions and methods for modulating flowering time in plants. Maize RAP2.7 nucleotide sequences are disclosed which upon overexpression cause later flowering and when inhibited cause earlier flowering. Also disclosed is a DNA sequence which acts as a regulator/enhancer of RAP2.7, termed VGT1. This sequence does not code for any known protein, but acts as either a RNAi element or a regulatory DNA or RNA element that either directly regulates expression of flowering genes such as Rap2.7 or specifically targets expression of other genes which control flowering genes such as Rap2.7. This element this can be used as a sequence—based marker to identify inbred and hybrids which have altered maturity. Methods for expressing these nucleotide sequences in a plant for modifying maturity and flowering in plants are provided as well as expression constructs, vectors, transformed cells and plants.Type: GrantFiled: July 27, 2005Date of Patent: January 20, 2009Assignees: Pioneer Hi-Bred International, Inc., University of BolognaInventors: Dwight Tomes, Silvio Salvi, Michele Morgante, Giorgio Sponza, Edward Bruggemann, Xiaomu Niu, Bailin Li, Roberto Tuberosa
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Publication number: 20080201803Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs particularly useful for altering root structure of plants, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter functional in a plant, wherein said polynucleotide encodes a polypeptide useful for altering plant root architecture.Type: ApplicationFiled: February 13, 2008Publication date: August 21, 2008Applicant: E.I. du Pont de Nemours and CompanyInventors: GRAZIANA TARAMINO, Hajime Sakai, Mai Komatsu, Xiaomu Niu
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Publication number: 20080172760Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions may comprise a novel nucleic acid sequence for a promoter with tissue specificity and/or cytokinin inducibility. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequence is also provided. The method comprises transforming a plant cell to contain a heterologous nucleotide sequence operably linked to the promoter of the present invention and regenerating a stably transformed plant from the transformed plant cell. Other methods provide for downregulation of cytokinin oxidase in a plant.Type: ApplicationFiled: March 20, 2008Publication date: July 17, 2008Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Xiaomu Niu, Haiyin Wang, Dwight T. Tomes, Sabine Hantke, Norbert Brugiere
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Patent number: 7371925Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions may comprise a novel nucleic acid sequence for a promoter with tissue specificity and/or cytokinin inducibility. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequence is also provided. The method comprises transforming a plant cell to contain a heterologous nucleotide sequence operably linked to the promoter of the present invention and regenerating a stably transformed plant from the transformed plant cell. Other methods provide for downregulation of cytokinin oxidase in a plant.Type: GrantFiled: March 7, 2005Date of Patent: May 13, 2008Assignee: Pioneer Hi-Bred International, Inc.Inventors: Xiaomu Niu, Haiyin Wang, Dwight T. Tomes, Sabine Hantke, Norbert Brugière
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Publication number: 20070169226Abstract: This invention relates generally to the field of plant molecular biology. More specifically, this invention relates to methods and reagents for the temporally- and/or spatially-regulated expression of genes, particularly in plant seeds and related female reproductive tissue. The present invention also provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions comprise novel nucleotide sequences for a seed-preferred promoter known as eep1. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to one of the promoters of the present invention and regenerating a stably transformed plant from the transformed plant cell.Type: ApplicationFiled: January 9, 2007Publication date: July 19, 2007Applicant: PIONEER HI-BRED INTERNATIONAL, INC.Inventors: Jeffrey Habben, Chris Zinselmeier, Dwight Tomes, Shane Abbitt, Timothy Helentjaris, Xiaomu Niu
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Publication number: 20070044180Abstract: The invention relates to the regulation of gene expression, particularly to methods and compositions for regulating gene expression in plants. Expression cassettes comprising a polynucleotide molecule of interest operably linked to the Brachytic2 (Br2) promoter, or a functional fragment or variant thereof, are provided. Methods of using such expression cassettes, as well as plant cells, plant tissues, plants, and seeds transformed with these expression cassettes, are additionally provided. The methods and compositions find use in regulating the expression of a polynucleotide molecule of interest in a plant.Type: ApplicationFiled: October 30, 2006Publication date: February 22, 2007Applicants: Pioneer Hi-Bred International, Inc., The Curators of the University of MissouriInventors: Dilbag Multani, Xiaomu Niu, Dwight Tomes, Haiyin Wang, Deping Xu
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Publication number: 20070044176Abstract: 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.Type: ApplicationFiled: August 15, 2006Publication date: February 22, 2007Inventors: Stephen Allen, Kanwarpal Dhugga, Kevin Fengler, Howard Hershey, Victor Llaca, Dale Loussaert, Lu Liu, Xiaomu Niu, Haiyin Wang
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Patent number: 7148401Abstract: The invention relates to the regulation of gene expression, particularly to methods and compositions for regulating gene expression in plants. Expression cassettes comprising a polynucleotide molecule of interest operably linked to the Brachytic2 (Br2) promoter, or a functional fragment or variant thereof, are provided. Methods of using such expression cassettes, as well as plant cells, plant tissues, plants, and seeds transformed with these expression cassettes, are additionally provided. The methods and compositions find use in regulating the expression of a polynucleotide molecule of interest in a plant.Type: GrantFiled: August 31, 2004Date of Patent: December 12, 2006Assignees: Pioneer Hi-Bred International, Inc., The Curators of the University of MissouriInventors: Dilbag Multani, Xiaomu Niu, Dwight T. Tomes, Haiyin Wang, Deping Xu
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Patent number: 7091398Abstract: The invention provides a novel isolated sucrose synthase nucleic acid and its encoded protein. The present invention also provides methods and compositions relating to altering sucrose synthase levels in plants, and in particular, in plant stalks and/or plant seeds. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and transgenic seeds.Type: GrantFiled: February 21, 2002Date of Patent: August 15, 2006Assignee: Pioneer Hi-Bred International, Inc.Inventors: Kanwarpal S. Dhugga, Timothy G. Helentjaris, Xiaomu Niu