BEH1 (DCAR_005165) — Daucus carota subsp. sativus

Summary

DCAR_005165 (DcBEH1) on carrot chromosome 2 encodes a BZR/BES1_N family protein with transcription regulator activity and sequence-specific DNA binding. It is associated with sterol breakdown and positive regulation of ethylene biosynthesis. The gene has been linked to root system morphology, adventitious root number, root hair density, leaf area, shoot system elongation rate, inflorescence length, peduncle length, fruit set, fruit quality, total soluble sugar content, seed coat morphology, endosperm morphology, carpel morphology, sepal morphology, floral organ number, and gravity response. Associations also include cold tolerance, chilling tolerance, photosynthesis, photoprotection, flowering time, pollen viability, pollen germination, seed number, cadmium resistance, autophagy, and responses to light quality, blue light, red light, sulfur, and nitrogen. The protein localizes to the chloroplast thylakoid, mitochondrial membrane, PP2A complex, and Toc complex. Studies of related genes in other species link the family to taproot diameter, sucrose accumulation, fruit ripening, wood formation, and drought sensitivity.