ARF8 — Brassica juncea

Summary

BJUA07G36530S, designated BjARF17 (synonyms ARF8, ARF17) on Indian mustard chromosome A07, encodes a transcription corepressor with DNA-binding and protein homodimerization activities, containing ARF and B3 DNA-binding domains. It is associated with auxin and jasmonic acid signaling, gibberellic acid homeostasis, and positive regulation of anther dehiscence. The gene is linked to pollen wall assembly, cell wall callose deposition, adventitious root development, root cap development, and pattern specification processes including vascular tissue pattern formation and embryo shoot apical meristem specification. It localizes to the nucleus and cytoplasm. Associations with disease tolerance, heat tolerance, seed germination, root morphology, and plant growth and development traits have been observed. Studies of related genes in other species link the family to callose synthesis, adventitious root initiation, and Fusarium wilt resistance.