ARF8 — Arabidopsis thaliana

Summary

AT5G37020 (ARF8) encodes an auxin response factor, a DNA-binding transcription factor with promoter-specific chromatin binding activity. In Arabidopsis, ARF8 is associated with parthenocarpy, adventitious root formation, and clubroot resistance. The gene has been linked to numerous developmental processes including nectary and carpel development, petal morphogenesis, secondary growth, dehiscence, and sexual reproduction. It is also connected to miRNA processing, embryonic pattern specification, and organ growth. ARF8 localizes to both the nucleus and cytoplasm and participates in auxin, gibberellin, and jasmonic acid signaling pathways. Associations with traits such as petal length, stigma exsertion, silique morphology, inflorescence height, and phototropism have been reported. Studies of related genes in other species link the ARF8 family to grain protein content, seed weight, fruit size and shape, biomass yield, and water use efficiency.