Polycomb protein ZmEMF1a restricts endosperm proliferation and directs differentiation via stage‐specific H2Aub1 and H3K27me3 landscapes in maize
These findings establish ZmEMF1a as an epigenetic regulator that balances endosperm proliferation, cell fate specification, and nutrient accumulation through stage‐specific histone modifications, thereby offering promising targets for enhancing maize yield and nutritional quality.