CmHSFA3-CmBRC1a-CmHB40 module inhibits axillary bud development in response to high temperature.
CmBRC1a is strongly induced by HT and inhibits axillary bud development in chrysanthemum and the CmHSFA3-CmBRC1a-CmHB40 module inhibits axillary bud development in response to HT, providing new insights into how environmental cues shape plant architecture.