Structure and diversity of 13S globulin zero-repeat subunit, the trypsin-resistant storage protein of common buckwheat ( M.) seeds.

The zero-repeat subunit of 13S globulin, which lacks tandem repeat inserts, is trypsin-resistant and suggested to show higher allergenicity than the other subunits in common buckwheat ( Moench). To evaluate allelic variations and find novel alleles, the diversity of the zero-repeat genes was examined for two Japanese elite cultivars and 15 Pakistani landraces. The results demonstrated that two new alleles and , plus three additional new alleles , , and , were identified besides the already-known , , and alleles.

Two novel quantitative trait loci affecting the variation in leaf photosynthetic capacity among soybeans.

There is a large variation in CO assimilation rate per unit of leaf area (A) within or among crop species, which can be exploited to improve A by elucidating the mechanisms underlying such variation. The objective of the present study is to elucidate the genetic factors affecting the variation in leaf photosynthetic capacity among soybeans. Here, we conducted field experiments over three years, using Enrei, a leading variety in Japan, Peking, a landrace from China and the chromosome segment substitution lines derived from their progenies.