Kirin Beer Kabushiki Kaisha

Toshiya Ogawa

Masaharu Yoshioka

Toshio Fujii

Toshihiro Toguri

Kanji Mamiya

Isao Ishida

The present invention relates to improved promoters and utilization thereof, in particular to promoters which are improved so as not to undergo methylation in the course of constructing transformants, and utilization thereof. According to the present invention, the expression efficiency of a structural gene can be enhanced even in a plant, e.g., which has weak expression of the structural gene by a cauliflower mosaic virus 35S promoter which as been considered a high expression promoter for plants.

Promoters and utilization thereof

The present invention relates to a method for creating a plant having resistance to RNA viruses, comprising incorporating a DNA sequence encoding an animal cell-derived (2&prime;-5&prime;)oligoadenylate synthetase and a DNA sequence encoding an animal cell-derived ribonuclease L into a chromosome(s) of the plant and expressing the DNA sequences, as well as plants created by the above method. The present invention is widely applicable to the breeding of virus resistant plant varieties.

Virus resistant plants expressing animal cell-derived (2&prime;-5&prime;)oligadenylate synthetase and ribonuclease L and A method for creating the same

Growing community of inventors

Kanagawa, Japan

Toshiya Ogawa