BI1 — Brassica oleracea var. botrytis

Summary

BoBI1 (BOLND125_C09P030720.1) on cauliflower chromosome 9 encodes a Bax inhibitor 1-related protein with multiple annotated molecular functions including protease binding, calcium channel activity, oxidoreductase activity, heme binding, and ATP hydrolase activity. The gene is associated with diverse biological processes such as very-long-chain fatty acid and glucosinolate anabolism, calcium signaling, regulation of photomorphogenesis and stomatal movement, root development, and responses to cold, UV, insects, and fungal defence. It has been linked to traits including drought tolerance, water use efficiency, flowering time, cadmium and arsenic concentration, root hair length, stem elongation, and disease tolerance. Localisation evidence connects the product to the vacuolar membrane, endoplasmic reticulum, nuclear envelope, chloroplast envelope, and plasmodesmata. Studies of related genes in other species link the family to programmed cell death suppression, stress tolerance, and ion homeostasis.