A New Genotype of 7 S Globulin(.BETA.-conglycinin) detected in Wild Soybean(Glycine soja Sieb. et Zucc.).

Abstract

A new genotype of 7 S globulin (P -conglycinin) was detected in a wild soybean line collected from the Amakusa islands (Southwestern part of Japan). On SDS-PAGE analysis, this wild soybean line showed a lack or an extremely low level of the a, a' and psubunit bands which compose 7 S globulin. We called this line, "QT 2" Some mutant soybean lines showing a similar band pattern have already been induced. However, these mutants were lethal. On the other hand, the QT 2 Iine grew and produced progeny without any physiological abnormalities. The progeny seeds showed the same genotype as the original QT 2 Iine. Therefore, we concluded that the genotype of the QT 2 Iine is truly an inherited trait.