BEH1 — Triticum turgidum subsp. durum

Summary

TRITD2BV1G078080 (symbol BEH1, also known as TtBZR2, BES1, and BZR1) on durum wheat chromosome 2B encodes a BZR/BES1 family transcription regulator containing BZR and BES1_N domains. The gene is associated with brassinosteroid signaling pathways, including BZR/BES-regulated transcription, phosphorylation, and interactions with PIF4 and 14-3-3 proteins. It has been linked to regulation of vernalization response, ethylene biosynthesis, sterol breakdown, and jasmonic acid/ethylene-dependent systemic resistance. Associations include traits such as brassinosteroid content, plant female sterility, fruit set, inflorescence length, leaf area, root system morphology, bacterial disease response, and total soluble sugar content. The gene is also connected to chloroplast stromal thylakoid and Toc complex localization, as well as PP2A and HDAC complexes. Related genes in other species link the family to plant height, grain size, heading date, and sheath blight resistance.