Transgenic plants having altered biomass composition

• US 10,323,256 B2
• Filed: 12/10/2012
• Issued: 06/18/2019
• Est. Priority Date: 12/09/2011
• Status: Active Grant

• Current Assignee: Ceres (Land O'Lakes Incorporated)
• Original Assignee: Ceres (Land O'Lakes Incorporated)
• Inventors: Park, Joon-Huyn, Pennell, Roger I., Flavell, Richard, Wu, Chuan-Yin
• Primary Examiner(s): Stankovic, Bratislav
• Application Number:
  US14/363,151
• Publication Number:
  US 20150052634A1
• Time in Patent Office: 2,381 Days
• Field of Search: None
• CPC Class Codes: C07K 14/415 from plants
• CPC Class Codes: C12N 15/8245 involving modified carbohydrate or sugar alcohol metabolism, e.g. starch biosynthesis
• CPC Class Codes: C12N 15/8246 Non-starch polysaccharides, e.g. cellulose, fructans, levans
• CPC Class Codes: C12N 15/8261 with agronomic (input) traits, e.g. crop yield
• CPC Class Codes: C12N 15/8297 Gibberellins; GA3
• CPC Class Codes: Y02A 40/146 Genetically Modified [GMO] plants, e.g. transgenic plants

Abstract

Methods and materials for modulating biomass composition in plants are disclosed. For example, nucleic acids encoding biomass composition-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having altered biomass composition and plant products produced from plants having altered biomass composition.

Claims

1. A method of producing a sorghum plant having increased plant height and having biomass with increased saccharification efficiency, said method comprising:

growing a sorghum plant comprising an exogenous nucleic acid, said exogenous nucleic acid comprising a heterologous regulatory region operably linked to a nucleotide sequence encoding a polypeptide having 95 percent or greater sequence identity to the amino acid sequence of SEQ ID NO;

473; and

selecting said plant for having increased plant height and having a biomass with increased saccharification efficiency, resulting in an at least 2.0 fold increase in glucose, fructose, and sucrose, relative to the plant height and the saccharification efficiency of a biomass of a control plant that does not comprise said nucleic acid.

2. The method of claim 1, wherein the nucleotide sequence encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:

473.

3. The method of claim 1, wherein selecting said plant comprises selecting said plant for having an increase in sugar concentration relative to a control plant that does not comprise said nucleic acid.