Towards dual-stage flood resilience: merging anaerobic germination and submergence tolerance in rice.

Dual-stage flood resilience in rice (Oryza sativa L.) can be achieved by combining anaerobic germination escape-by-elongation with SubTol, converging on Tre6P/SnRK1A energy signaling and hormonal crosstalk.

• Why it matters: Flooding threatens rice at germination/establishment and vegetative growth, and stage-specific programs can conflict, leaving a gap in how to combine them without antagonism.
• What they did: The work integrates mechanistic advances: anaerobic germination uses a calcium-dependent kinase cascade with SnRK1A and Tre6P tuning via TPP7/AG1, while SubTol is regulated by SUB1A stabilizing DELLA repressors.
• The result: Convergence on shared control points—Tre6P/SnRK1A, hormonal crosstalk, fermentative capacity, and redox preparedness—supports breeding design principles using marker-assisted introgression, genomic selection, and cis-regulatory genome editing.

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