A new soybean [Glycine max (L.) Merr.] cultivar "Yumeminori", registerd as "Soybean Norin 117", was developed at National Agricultural Research Center for Tohoku Region (NARCT) in 2001. It was induced by subjecting gamma-ray irradiation to "Kari-kei 434", a genetically fixed line with a low level of 7S globulin (β-conglycinin) which is characterized by the absence of the α' subunit and low levels of both the α and β subunits. It is clarified that Gly m Bd 30K, Gly m Bd 28K and α subunit of 7S globulin are the three major allergens in soybean seeds. "Yumeminori" lacks the α and α' subunits of 7S globulin and Gly m Bd 28K. Moreover, it is efficient to eliminate Gly m Bd 30K from the soybean protein isoletes (SPIs) of "Yumeminori". Therefore, "Yumeminori" has low allergenicity. On the other hand, this cultivar is rich in 11S globulin (glycinin) and sulfer-containing amino acids. "Yumeminori" is classified into group III based on the date of maturity. This cultivar is characterized by purple flowers, gray pubescence, broad leaflets and brown pods at maturity. It has a medium in height with determinate growth. It is resistant to soybean mosaic virus (SMV). The seed of "Yumeminori" are medium in size and dull whitish yellow with yellow hila. The protein content is higher than that of "Enrei" which is classified in high protein content cultivar. It shows adaptability in Tohoku, Hokuriku and northern part of Kanto districts. Since the utilizations for hypoallergenic foods have nearly reached to the practical grade, "Yumeminori" was released as a new cultivar with low allergenicity in 2001.
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低アレルゲン・高11 Ｓグロブリンダイズ「ゆめみのり」の育成
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