ARF9 — Cicer arietinum

Summary

PvARF9 on chickpea chromosome 8 encodes a protein containing ARF, AUX/IAA, PB1-like, and B3 DNA-binding domains, and is annotated with transcription corepressor activity, sequence-specific DNA binding, and protein heterodimerization activity. The gene is associated with root elongation, crown root development, and expression of IAA6 and ARF1. It has been linked to numerous traits including yield, sulfur content, leaf vein morphology, adventitious and lateral root number, osmotic response sensitivity, auxin and brassinosteroid sensitivity, phototropism, arsenic concentration, and biotic stress tolerance. The product localises to the nucleus, cytoplasm and plasmodesma, and is associated with meristem development, leaf senescence, fruit ripening, gibberellic acid homeostasis, and vegetative phase change. Studies of related genes in other species link the ARF9 family to lateral root organogenesis, vascular tissue development, shoot regeneration, and virus resistance.