National Institute of Agrobiological Sciences

Atsushi Yoshimura

Masahiro Yano

Motoyuki Ashikari

Takuji Sasaki

Takashi Matsumoto

Utako Yamanouchi

Takuichi Fuse

Kazuyuki Doi

Jianzhong Wu

Kimiko Yamamoto

A detailed linkage analysis of the Ehd1 region was performed with a large segregating population, essential for map-based cloning. As a result, the Ehd1 gene promoting rice heading (flowering) was successfully isolated. Rice heading time was also found to be altered upon introduction of this gene. Based on these facts, the newly isolated and identified Ehd1 gene is expected to be useful in promoting plant flowering.

Ehd1 gene promoting plant flowering, and utilization thereof

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

Growing community of inventors

Fukuoka, Japan

Atsushi Yoshimura