ARF3 — Medicago truncatula

Summary

MTR_8G079492, designated MtARF3, encodes a protein containing B3 DNA-binding, ARF and PB1-like domains. It is annotated as a DNA-binding transcription factor that binds chromatin, cis-regulatory regions, and promoter-specific sequences, and interacts with identical proteins and bHLH transcription factors. MtARF3 is associated with the regulation of auxin biosynthesis and auxin-mediated signaling, plant organ morphogenesis, lateral root morphogenesis, callus formation, leaf senescence, seed dormancy, thermomorphogenesis, filament development, and the downregulation of innate immune responses and lateral root development. It localises to the nucleus, cytosol and cytoplasm. The gene is linked to numerous agronomic traits including fruit quality, total soluble sugar content, leaf area, heterosis, carotenoid content, plant male sterility, adventitious and lateral root number, shoot branching, phosphorus uptake, and responses to temperature stress and phototropism. Related genes in other species are linked to drought tolerance, thermomorphogenesis, flowering, and root meristem growth.