D61 — Oryza sativa Indica Group

Summary

BGIOSGA000907 (D61, also known as OiBRI1) encodes a leucine-rich repeat receptor-like kinase (LRR-RLK) with a BRI1 island domain and serine/threonine kinase activity. In indica rice, D61 is associated with brassinosteroid (BR) signaling, plant architecture, grain yield, root and shoot development, and meristem function. The gene has been linked to grain length, weight, and width, as well as plant height, biomass, panicle traits, and stress tolerance including salt and water stress. Additional associations include leaf shattering, shoot growth angle, brassinosteroid content, gibberellin biosynthesis, anther morphology, and responses to temperature, aphids, aluminum, and powdery mildew. Related genes in other species link the family to pathogen-associated molecular pattern-triggered immunity, endosomal trafficking, abscisic acid sensitivity, and thermotolerance.