TFL1 — Arabidopsis thaliana

Summary

AT5G03840 (TFL1) in Arabidopsis thaliana encodes a phosphatidylethanolamine-binding protein (PEBP) family member that acts as a transcriptional co-regulator with DNA binding transcription factor activity. TFL1 is associated with inflorescence development and meristem maintenance, particularly the maintenance of inflorescence meristem identity and shoot meristem development. The gene is linked to flowering time regulation, photoperiod-sensitive flowering, floral organ formation, and shoot regeneration. TFL1 has been connected to numerous agronomic traits including seed yield, seed size, germination rate, drought tolerance, salt tolerance, leaf area index, stem length, photosynthetic rate, and photochemical quenching. It localizes to the nucleus, cytoplasm, vacuole, vesicle, and plasmalemma. Studies of related genes in other species link the family to growth habit, shoot architecture, sympodial growth, plant height, and spikelet size.