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Abstract

Soybean is a vital source of vegetable oil, protein, feed, and industrial raw materials, yet its yield remains considerably lower than that of major cereal crops. Unlike rice and wheat, which rely heavily on nitrogen fertilizers to promote tillering and enhance productivity, soybean acquires over 70% of its nitrogen through symbiotic nitrogen fixation. Tang et al. (pages 75–95) report that knockout of the gibberellin receptor gene GmGID1‐2 boosts both soybean yield and nitrogen fixation—a dual benefit not observed in the semi‐dwarf mutants of cereals. The cover image illustrates a GmGID1‐2 knockout soybean plant (right) that, despite its shorter stature, exhibits increased branching, more pods and seeds, and ultimately higher yield compared to the wild type (left), alongside a root system with more nodules and greater capacity to fix nitrogen. The pleiotropic benefits of GmGID1‐2 knockout alleles suggest a promising strategy for advancing sustainable soybean agriculture.

Fields of Study & Subjects

Soybean genetics and cultivation Plant nutrient uptake and metabolism Legume Nitrogen Fixing Symbiosis

Publication details

Journal / source
Journal of Integrative Plant Biology
Volume
68
Issue
1
Publication date
1 January 2026
Language
EN