Demonstrates that GSK3 regulates DOG1L4 to improve seed dormancy in wheat, suggesting potential agricultural applications.
GLYCOGEN SYNTHASE KINASE 3 (GSK3), a negative regulator of brassinosteroid signaling, phosphorylates and stabilizes the seed dormancy protein DOG1L4, which in turn activates ABSCISIC ACID INSENSITIVE 5 (ABI5) to enhance seed dormancy. GSK3 also phosphorylates ABI5. This dual-target mechanism suggests a strategy for controlling seed dormancy and germination in crops.
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Dong et al. (2026) studied this question.
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