BKI1 — Cucumis sativus

Summary

CsBKI1 (CSA_4G639220) on cucumber chromosome 4 encodes a BKI1/MAKR1/3/4 family protein with kinase inhibitor activity, protein kinase inhibitor activity, steroid binding, SNARE binding, and protein heterodimerization activity. The gene is associated with negative regulation of brassinosteroid biosynthetic process, sex determination, anther wall tapetum cell differentiation, pollen exine formation, flower morphogenesis, leaf development, and response to brassinosteroid, stress, and UV-B. It is linked to traits including brassinosteroid content and sensitivity, gibberellin biosynthesis, temperature stress response, root phototropism, seedling hypocotyl length, stamen length, leaf morphology, flowering time, and salt tolerance. The protein localizes to the endosome, plastid, cytosol, plasma membrane, and nucleus. Related genes in other species link the family to brassinosteroid signaling, hydrotropism, salt resistance, and photomorphogenesis.