Key Wheat Genes That Control Plant Height and Grain Size Identified

Written on 10/09/2025
Seed World Staff

Rothamsted scientists discovered how specific GA3OX genes in wheat regulate growth and grain size by controlling gibberellin hormone levels. Variations in these genes affect plant height and grain weight, with modern breeding already favoring variants linked to larger grains. This insight offers new tools for breeders to optimize wheat yield and quality through targeted genetic selection.

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