Patents by Inventor Roger P. Hellens

Roger P. Hellens 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).

  • DWARF PLANT VARIETIES THROUGH MUTATION OF ETTIN GENE UPSTREAM OPEN READING FRAMES
    Publication number: 20260226489
    Abstract: Crop and other plants with increasing the expression of the transcription factor ETTIN are disclosed. The expression of ETTIN in a plant is increased by reducing the transcription of an Upstream OPEN READING FRAME (uORF) which is located upstream of the ETTIN coding sequence. Reduced expression of the ETTIN gene confers a dwarf phenotype in the plant. The plant in which the ETTIN uORF is targeted may be a rootstock of a crop plant. The rootstock may be grafted to a scion of a crop plant and the scion exhibits a dwarf phenotype. The present disclosure provides a means of creating mutations in uORFs DNA repressor elements for the purpose of generating new dwarf crop varieties.
    Type: Application
    Filed: February 3, 2024
    Publication date: August 6, 2026
    Inventors: Roger P. Hellens, Oliver J. Ratcliffe, Jeffrey M. Libby
  • Chimeric promoters comprising MYB10 repeat element and methods for regulating plant gene expression
    Patent number: 8686125
    Abstract: The invention provides a method for producing a chimeric promoter polynucleotide capable of controlling transcription of an operably linked polynucleotide in a plant cell or plant, wherein the method comprises combining: a) at least one sequence motif comprising a sequence with at least 70% identity to SEQ ID NO:1, 11 or 12, and b) another polynucleotide sequence. The invention also provides chimeric promoters polynucleotides comprising the sequences defined in a) and b). The invention also provides constructs, vectors, host cells, plant cells and plants comprising the chimeric promoter polynucleotides of the invention. The invention also provided methods for modifying gene expression and phenotype of plant cells and plants by transforming the plant cells and plants with the chimeric promoter polynucleotides of the invention.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: April 1, 2014
    Assignee: The New Zealand Institute for Plant and Food Research Limited
    Inventors: Richard Espley, Roger P. Hellens, Andrew C. Allan, David Chagne, Cyril Brendolise
  • Chimeric Compositions and Methods for Regulating Plant Gene Expresssion
    Publication number: 20110271396
    Abstract: The invention provides a method for producing a chimeric promoter polynucleotide capable of controlling transcription of an operably linked polynucleotide in a plant cell or plant, wherein the method comprises combining: a) at least one sequence motif comprising a sequence with at least 70% identity to SEQ ID NO:1, 11 or 12, and b) another polynucleotide sequence. The invention also provides chimeric promoters polynucleotides comprising the sequences defined in a) and b). The invention also provides constructs, vectors, host cells, plant cells and plants comprising the chimeric promoter polynucleotides of the invention. The invention also provided methods for modifying gene expression and phenotype of plant cells and plants by transforming the plant cells and plants with the chimeric promoter polynucleotides of the invention.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 3, 2011
    Inventors: Richard Espley, Roger P. Hellens, Andrew C. Allan, David Chagne, Cyrill Brendolise