FT — Sorghum bicolor

Summary

SORBI_3008G082200 (SbFT) on sorghum chromosome 8 encodes a phosphatidylethanolamine-binding protein (PEBP family) with multiple annotated molecular functions including DNA-binding transcription factor activity, mRNA regulatory element binding translation repressor activity, and protein N-GlcNAc transferase activity. SbFT is associated with photoperiodism, floral whorl development, meristem determinacy, and responses to short-day and strigolactone. It is linked to flowering time traits, inflorescence development, spikelet floret size, stem length, shoot axis branching, photoperiod sensitivity, and temperature stress response. The gene is also linked to drought stress, water loss, and stomatal regulation. Localization evidence places the product in the plasmodesma, ER, Golgi, plastid, and mitochondria. Studies of related genes in other species link the family to photoperiodic flowering, floral transition, inflorescence architecture, and endosperm development.