Transgenic plants comprising a mutant phytochrome and showing altered photomorphogenesis

Patent metadata

Field	Value
Publication number	US-9506080-B2
Application number	US-201414249257-A
Country	US
Kind code	B2
Filing date	Apr 9, 2014
Priority date	Apr 18, 2006
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

This invention pertains to the discovery of mutant phytochromes that when introduced into a plant alter the photomorphogenic properties of that plant. In certain embodiments transfection of plants by nucleic acid constructs expressing the mutant phytochromes produced plants having a phenotype characterized by light-independent’ activation. Thus, in certain embodiments, this invention provides a transgenic plant or plant cell comprising a mutant phytochrome where the mutant phytochrome is a light-stable phytochrome; and the transgenic plant shows decreased shade avoidance as compared to the same species or strain of plant lacking the mutant phytochrome. In various embodiments the mutant phytochrome comprises a mutation at the position corresponding to tyrosine residue 276 in an Arabidopsis phytochrome where the mutation is to a residue other than tyrosine.

First claim

What is claimed is:

1. A transgenic plant or plant cell, said transgenic plant or plant cell comprising a mutant phytochrome wherein:
said mutant phytochrome is a light-stable phytochrome that comprises a mutation at the position corresponding to tyrosine residue 276 in an Arabidopsis phytochrome B where said mutation is to a residue other than tyrosine; and
said transgenic plant shows altered photomorphogenesis as compared to the same species or variety of plant lacking the m…

Assignees

• Univ California

Inventors

• Lagarias John Clark
• Su Yi-Shin

Classifications

• C12N15/8209

  Chemistry & Metallurgy · mapped topic

• C07K14/415

  Chemistry & Metallurgy · mapped topic

• C12N15/8261 Primary

  Chemistry & Metallurgy · mapped topic

• Y02A40/146

  Cross-Sectional Technologies · mapped topic