2025 年 75 巻 4 号 p. cover
On the cover
In many yellow soybean cultivars grown in Japan, pigmentation is suppressed throughout the seed coat, including the hilum region (right). Fully pigmented seeds are sometimes produced by yellow soybean cultivars as a result of a spontaneous mutation from I to i (left). A candidate for the I allele was isolated and designated GmIRCHS. The causal DNA changes in the mutation are small or large deletions that involve GmIRCHS. Recently, the whole-genome sequence of the Japanese yellow soybean cultivar ‘Enrei’ has been released. Based on this, the unidentified large deletion regions in the mutants were investigated (This issue, p. 334–338).
(M. Senda: Faculty of Agriculture and Life Science, Hirosaki University)