Grain number per panicle (GNP) is a yield-determining trait of rice. Here, the authors identify a GSK3-like kinase-encoding gene GNP2 and a bZIP transcription factor-encoding gene GNP5, demonstrating their synergistic regulation of GNP and showing that specific allele combinations of these genes enhance rice yield in field conditions.
- Qianfeng Hu
- Zhikun Zhao
- Zhanying Zhang