Breeding Science was first established as the Japanese Journal of Breeding in 1951 by the Japanese Society of Breeding. In the long history of this journal, Breeding Science has been an open space where all the findings and technologies related to breeding can interact and merge to generate new knowledge and ideas for breeding. Breeding Science is published to enrich the lives of people throughout the world by biological production in harmony with the global environment. Breeding Science publishes Research papers, Notes, and Reviews. Research papers are original articles related to breeding. Notes report new cultivars, breeding lines, germplasms, genetic stocks, mapping populations, and useful techniques as well as short original reports. Reviews summarize recent and past events related to breeding.