BIN1 — Beta vulgaris subsp. vulgaris

Summary

BVRB_2G024180 (BIN1, also known as BRI1) on sugar beet chromosome 2 encodes a leucine-rich repeat receptor-like kinase with a BRI1 island domain and protein kinase activity, annotated with transmembrane receptor protein tyrosine kinase activity. The gene is associated with brassinosteroid signalling, including both activation and negative regulation of brassinosteroid-mediated signalling, as well as negative regulation of brassinosteroid biosynthetic process. It is linked to numerous developmental and stress-related traits, including root system development, shoot growth, seedling development, phloem development, cotyledon vascular tissue pattern formation, negative gravitropism, and responses to water stress, temperature stress, aluminum, aphids, and powdery mildew. Additional associations include plant male sterility, anther morphology, leaf shattering, phototropism, phosphorus and nitrate uptake, and auxin content. Studies of related genes in other species link the family to brassinosteroid signalling, immunity, endosomal trafficking, and stress tolerance.