玉米产量性状的表观遗传调控机制和育种应用.

Crop phenotypic diversity is influenced by many factors, and epigenetic variation can control crop traits and stress response through epigenetic modification to regulate gene expressions, and then affect crop yield. The main agronomic traits affecting maize yield include plant height, leaf angle and root. In addition, germplasm resources, biotic stress and abiotic stress are also key factors affecting maize yield. The main epigenetic regulation modes in crops include histone modification, DNA modification, RNA modification, non-coding RNA and chromatin remodeling. In this review, the epigenetic mechanism of the main agronomic traits in maize is summarized from the perspective of epigenetic regulation, and the new strategy of epigenetics-mediated crop breeding (epibreeding) to improve maize yield is proposed in combination with CRISPR/Cas-based epigenome editing technology. [ABSTRACT FROM AUTHOR]