The Yield-Associated TaCOL-B5 Locus Activates Its Tightly Linked Target TaDRS1 to Restrict Root Apical Meristem Proliferation and Deep Rooting in Wheat.
Rooting depth underpins subsoil water capture and drought resilience in wheat, yet the regulators coupling root apical meristem (RAM) activity to vertical root growth remain largely unknown. We characterise Deep Root Suppressor 1 (TaDRS1; TraesCS7B01G400700), a transcriptional target of the yield-associated CONSTANS-li...