A new rice gene, GSN7, coordinately regulates grain yield and quality (IMAGE)
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GSN7 encodes an atypical cytoplasmic kinase that competitively interacts with GW5 and OsGSK2, thereby attenuating GW5-mediated inhibition of OsGSK2 phosphorylation and ultimately suppressing grain length‑to‑width ratio and grain number per panicle. Reducing GSN7 abundance increases the grain length‑to‑width ratio and grain number per panicle. GSN7 represents a valuable genetic resource for breeding high-yielding, high-quality rice cultivars.
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