FG — Brachypodium distachyon

Summary

BdFG (BRADI_1G31280V3) on Brachypodium distachyon chromosome 1 encodes a CONSTANS-like protein with B-box zinc finger and CCT domains, and is annotated with diverse molecular functions including glutamate-tRNA ligase activity, protein N-GlcNAc transferase activity, histone methylase activities, and red/far-red light photoreceptor activity. The gene is associated with regulation of flowering time, particularly through short-day photoperiodism and phytochrome signaling, as well as carotenoid metabolism, chlorophyll breakdown, circadian clock photoentrainment, and responses to light quality and duration. Associations extend to agronomic traits including grain yield, spikelet number, seed protein content, endosperm storage protein content, stem length, vegetative vigor, iron content, and responses to water stress, nitrogen, nitrate, glyphosate, and spot blotch disease. Studies of related genes in other species link the family to heading date, panicle architecture, grain plumpness, and domestication traits.