Patents by Inventor Peizhong Zheng

Peizhong Zheng 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).

  • Publication number: 20220282339
    Abstract: The method described presents a novel method of quantitative estimation of genetic quality of crop for a specific trait using pyrosequencing and next generation sequencing. The method quantitatively estimates the presence of a seed lot with seed of unwanted genetic trait using the allele frequency. The method assesses the genetic purity of a trait quantitatively based on allele frequency of the genetic variation between the desired and the contaminant's locus. Allele frequency is obtained by sequencing amplicons with a sequencing primer binding at the intersection of the site of genetic variation that differentiates between contaminant and the desired trait. The true genetic purity of an unknown seed lot is estimated by substituting the allele frequency value in a regression equation derived from the allele frequencies of several standards used in every sequencing experiment.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 8, 2022
    Inventors: SRILAKSHMI MAKKENA, Md. Shofiqul Islam, Matheus Romanos Benatti, Peizhong Zheng
  • Patent number: 10954524
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: March 23, 2021
    Inventors: William J Gordon-Kamm, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Patent number: 10954525
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 23, 2021
    Inventors: William J Gordon-Kamm, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Patent number: 10947550
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 16, 2021
    Inventors: William J Gordon-Kamm, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Publication number: 20190194678
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: April 19, 2018
    Publication date: June 27, 2019
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: WILLIAM J GORDON-KAMM, TIMOTHY G HELENTJARIS, KEITH S LOWE, BO SHEN, MITCHELL C TARCZYNSKI, PEIZHONG ZHENG
  • Publication number: 20190100765
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: WILLIAM J. GORDON-KAMM, TIMOTHY G. HELENTJARIS, KEITH S. LOWE, BO SHEN, MITCHELL C. TARCZYNSKI, PEIZHONG ZHENG
  • Patent number: 10214783
    Abstract: A method is provided for determining the zygosity of an Rf4 gene in a corn plant. A method may include performing a first PCR assay, a second PCR assay, quantifying probes used in the first and second PCR assays, and comparing the quantified probes to determine zygosity.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: February 26, 2019
    Assignee: Dow AgroSciences LLC
    Inventors: Ruihua Ren, Peizhong Zheng, Siva Prasad Kumpatla
  • Publication number: 20190017061
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 17, 2019
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: WILLIAM J. GORDON-KAMM, TIMOTHY G. HELENTJARIS, KEITH S. LOWE, BO SHEN, MITCHELL C. TARCZYNSKI, PEIZHONG ZHENG
  • Patent number: 10125372
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: November 13, 2018
    Assignee: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: William J Gordon-Kamm, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Patent number: 10117411
    Abstract: This disclosure concerns high-resolution mapping and candidate gene cloning of Rf4, a maize restorer of fertility gene that restores fertility to C-type cytoplasmic male sterility. The disclosure also relates to molecular markers that are tightly-linked to, or reside within, the Rf4 gene. In some embodiments, methods are provided whereby hybrid seeds may be produced from crosses of a male plant comprising nucleic acid molecular markers that are linked to or that reside within the Rf4 gene and a female plant carrying C-type CMS.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 6, 2018
    Assignee: Dow AgroSciences LLC
    Inventors: Ruihua Ren, Bruce A. Nagel, Siva P. Kumpatla, Peizhong Zheng, Gary L. Cutter, Thomas W. Greene, Steven A. Thompson
  • Patent number: 10113175
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 30, 2018
    Assignee: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: William J Gordon-Kamm, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Publication number: 20160355894
    Abstract: A method is provided for determining the zygosity of an Rf4 gene in a corn plant. A method may include performing a first PCR assay, a second PCR assay, quantifying probes used in the first and second PCR assays, and comparing the quantified probes to determine zygosity.
    Type: Application
    Filed: July 23, 2013
    Publication date: December 8, 2016
    Inventors: Ruihua REN, Peizhong ZHENG, Siva Prasad KUMPATLA
  • Publication number: 20160326539
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: April 18, 2016
    Publication date: November 10, 2016
    Inventors: WILLIAM J. GORDON-KAMM, Timothy G. Helentjaris, Keith S. Lowe, Bo Shen, Mitchell C. Tarczynski, Peizhong Zheng
  • Publication number: 20160289697
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 6, 2016
    Inventors: WILLIAM J GORDON-KAMM, Timothy G Helentjaris, Keith S Lowe, Bo Shen, Mitchell C Tarczynski, Peizhong Zheng
  • Patent number: 9340796
    Abstract: Methods and compositions for modulating plant development are provided. Nucleotide sequences and amino acid sequences encoding Ovule Development Protein 2 (ODP2) proteins are provided. The sequences can be used in a variety of methods including modulating development, developmental pathways, altering oil content in a plant, increasing transformation efficiencies, modulating stress tolerance, and modulating the regenerative capacity of a plant. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 17, 2016
    Assignee: PIONEER HI BRED INTERNATIONAL INC
    Inventors: William J. Gordon-Kamm, Timothy G. Helentjaris, Keith S. Lowe, Bo Shen, Mitchell C. Tarczynski, Peizhong Zheng
  • Patent number: 9137957
    Abstract: Compositions related to the quantitative trait locus 6 (QTL6) in maize and methods for their use are provided. The compositions are novel molecular marker loci that are genetically linked with QTL6 and which are associated with increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio of a plant or plant part thereof. These novel markers are characterized by the presence of at least one polymorphism relative to the corresponding marker locus from the QTL6 region of non-high-oil, non-high-oleic acid maize plants. In some embodiments, the novel marker loci comprise coding sequence for a maize DGAT1-2 polypeptide or biologically active variant thereof.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 22, 2015
    Assignees: PIONEER HI BRED INTERNATIONAL INC, E I DU PONT DE NEMOURS AND COMPANY
    Inventors: William B. Allen, Bo Shen, Mitchell C. Tarczynski, Mark E. Williams, Peizhong Zheng, Gan-Yuan Zhong
  • Patent number: 9131725
    Abstract: This disclosure concerns specific naturally-occurring mutant maize cad2 genes, which altered genes contribute to the bm1 maize phenotype in particular maize lines. In some embodiments, compositions and methods are provided that utilize a nucleic acid molecule comprising a mutant cad2 gene, and/or markers linked to a mutant cad2gene.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: September 15, 2015
    Assignee: Agrigenetics, Inc.
    Inventors: Wei Chen, Nathan J. VanOpdorp, Siva P. Kumpatla, Peizhong Zheng, Peter D. Friedemann, Thomas W. Greene, Dennis Fitzl
  • Patent number: 8748576
    Abstract: Compositions related to the quantitative trait locus 6 (QTL6) in maize and methods for their use are provided. The compositions are novel molecular marker loci genetically linked with QTL6 and which are associated with increased oil content and/or increased oleic acid content and/or an increased oleic acid/linoleic acid ratio of a plant. These novel markers are characterized by the presence of at least one polymorphism relative to the corresponding marker locus from the QTL6 region of non-high-oil, non-high-oleic acid maize plants. In some embodiments, the novel marker loci comprise coding sequence for a maize DGAT1-2 polypeptide or biologically active variant thereof. The marker loci of the invention, and suitable fragments thereof, are useful in methods for manipulating oil and/or oleic acid content and/or oleic acid/linoleic acid ratio of a plant, for marker-assisted selection of a plant, and for marker-assisted breeding of the high oil and/or high oleic acid trait.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: June 10, 2014
    Assignees: E I du Pont de Nemours and Company, Pioneer Hi-Bred International, Inc.
    Inventors: William B. Allen, Bo Shen, Mark E. Williams, Peizhong Zheng, Gan-Yuan Zhong
  • Publication number: 20140130206
    Abstract: The invention provides isolated pyruvate dehydrogenase kinase nucleic acids and their encoded polypeptides. The present invention provides methods and compositions relating to altering pyruvate dehydrogenase kinase levels in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants, and antibody compositions.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicants: PIONEER HI-BRED INTERNATIONAL INC, E I DU PONT DE NEMOURS AND COMPANY
    Inventors: EDGAR B. CAHOON, REBECCA E. CAHOON, SAVERIO CARL FALCO, YIWEN FANG, SABINE S. HANTKE, ANTHONY J. KINNEY, JIAN-MING LEE, ZHONGSEN LI, GUO-HUA MIAO, MICHELE MORGANTE, XIPING NIU, JOAN T. ODELL, J ANTONI RAFALSKI, HAJIME SAKAI, PEIZHONG ZHENG, QUINN QUN ZHU
  • Publication number: 20140024037
    Abstract: A method is provided for determining the zygosity of an Rf4 gene in a corn plant. A method may include performing a first PCR assay, a second PCR assay, quantifying probes used in the first and second PCR assays, and comparing the quantified probes to determine zygosity.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 23, 2014
    Inventors: Ruihua REN, Peizhong ZHENG, Siva Prasad KUMPATLA