Toyota Jidosha Kabushiki Kaisha

Okayama Prefecture

Etsuko Hattori

Chikara Ohto

Satoshi Kondo

Norihiro Mitsukawa

Kenichi Ogawa

Satoru Nishimura

Kazuyo Ito

A technique by which the production of plant biomass can be significantly increased is provided. The AT3G05660 gene encoding a receptor-like protein having a leucine-rich repeat structure or a gene functionally equivalent to such a gene is introduced, or an expression control region of an endogenous gene corresponding to the gene is modified.

Gene for increasing the production of plant biomass and method of use thereof

The present invention provides gene expression regulatory DNA having activity of promoting gene expression in a mature-leaf-specific manner. The following is provided: gene expression regulatory DNA having activity of promoting gene expression in a mature-leaf-specific manner, which comprises any one of the following (a) to (d): (a) DNA consisting of the nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 4; (b) DNA consisting of a nucleotide sequence that has a deletion, a substitution, an addition, or an insertion of one or a plurality of nucleotides in the nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 4 and having activity of promoting gene expression in a mature-leaf-specific manner; (c) DNA consisting of a nucleotide sequence having 90% or more sequence identity to the nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 4 and having activity of promoting gene expression in a mature-leaf-specific manner; and (d) DNA hybridizing under stringent conditions to DNA consisting of a sequence complementary to a part or the entirety of the nucleotide sequence shown in SEQ ID NO: 1 or SEQ ID NO: 4 and having activity of promoting gene expression in a mature-leaf-specific manner.

Mature leaf-specific promoter

According to the present invention, a technique with which the production of plant biomass can be drastically increased and salt stress resistance can be imparted to a plant is provided. A gene encoding a protein comprising a common sequence consisting of the amino acid sequence shown in SEQ ID NO: 3 and a common sequence consisting of the amino acid sequence shown in SEQ ID NO: 2 in such order from the N-terminal side and having a coiled-coil structure, a nucleic acid binding site, and a leucine rich repeat structure has been introduced or an expression control region of the gene that is endogenously presented has been altered.

Gene capable of increasing the production of plant biomass and method for using the same

Growing community of inventors

Toyota, Japan

Etsuko Hattori