National Institute of Agrobiological Sciences

Society for Techno-innovation of Agriculture, Forestry and Fisheries

National Agriculture and Bio-oriented Research Organization

Other

Kumiai Chemical Industry Co., Ltd.

Takuji Sasaki

Masahiro Yano

Motoyuki Ashikari

Yuichi Katayose

Yuji Takahashi

Takashi Matsumoto

Utako Yamanouchi

Atsushi Yoshimura

Takuichi Fuse

Zi-Xuan Wang

Mineo Kojima

Masayuki Nozue

Hidenari Shioiri

Kimiko Yamamoto

Jianzhong Wu

Masao Iwamoto

Risa Ishimaru

Lisa Ishimaru

A rice photosensitivity gene Hd1 is successfully isolated by linkage analysis. It is found out that the photosensitivity of a plant can be modified by transferring this gene or controlling the expression thereof. It is further found out that the photosensitivity of a plant can be evaluated by examining the presence/absence of this functional gene.

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The present inventors successfully isolated a photoperiod sensitivity gene Hd6 from rice by a linkage analysis. It was revealed that the photoperiod sensitivity of plants can be modified by introducing the gene or controlling the expression of the gene. Further, it was demonstrated that the photoperiod sensitivity of plants can be assessed by detecting the presence or absence of the functional gene.

Photosensitivity gene of plant and utilization thereof

Providing a technique regulating branching in ornamental plants or agricultural plants for elevating the branching and the like, to raise the value or elevate the yield. A gene regulating plant branching, the gene containing the rice MADS box gene or a gene homologous with the gene; a vector carrying the gene; and a microorganism transformed with the vector and a method for regulating plant branching, utilizing the microorganism.

Gene regulating plant branching, vector containing the gene, microorganism transformed by the vector, and method for regulating plant branching by using the microorganism

A method of dwarfing plants comprises controlling the expression of the genes involved in the dwarfism of the plants is provided. A molecule to be utilized for dwarfing plants is also provided. A single gene that causes the d1 mutation, which results in the dwarf abnormality of rice, was identified and isolated from a vast chromosomal region by the map-based cloning technique. This method enables, for example, creating ornamental plants and agricultural products with new commercial values, and therefore is useful especially in the areas of agriculture and horticulture.

Method of dwarfing plants

A blast disease-resistance gene (Pi-b), a functionally equivalent gene thereof and proteins encoded by the genes are provided. The gene is useful for creating a plant resistant to the blast disease and can confer a resistance to a broad range of the rice blast fungi on plants. Therefore, it is useful for controlling the disease and increasing crop yields.

Rice gene resistant to blast disease

Growing community of inventors

Tsukuba, Japan

Takuji Sasaki