ARF4 — Beta vulgaris subsp. vulgaris

Summary

BvARF4 (BVRB_9G208190) on sugar beet chromosome 9 encodes a protein with ARF, AUX/IAA, PB1-like, B3 DNA-binding and DNA-binding pseudobarrel domains, and exhibits sequence-specific DNA binding, transcription cis-regulatory region binding, protein heterodimerization, protein homodimerization, identical protein binding, DNA binding, DNA binding transcription factor activity, protein binding and miRNA binding activities. The gene is associated with numerous developmental processes including flower, fruit, sepal, petal and filament development, vegetative phase change, pattern specification, geotropism, and regulation of anthocyanin biosynthesis. It is linked to traits such as lateral root number and length, root meristem development, leaf morphology and senescence, stem senescence, flowering time, photosynthetic rate, sulfur content, and responses to auxin, ethylene, abscisic acid, osmotic stress, high temperature and biotic stress. The protein localizes to both the nucleus and cytoplasm. Studies of related genes in other species connect the family to drought resistance, salt tolerance, osmotic stress tolerance and ascorbic acid accumulation.