ARF20 — Cicer arietinum

Summary

ARF20 (BIP) on chickpea chromosome 7 encodes a protein containing ARF, AUX/IAA, B3 DNA-binding and PB1-like domains, and is annotated as a sequence-specific DNA-binding transcription factor with transcription corepressor activity. The gene is associated with auxin signalling, response to auxin and jasmonic acid, and regulation of lateral root development, leaf senescence, meristem development, embryo development, and vascular tissue pattern formation. It localises to the nucleus, cytoplasm and plasma membrane. ARF20 is linked to numerous traits including leaf vein morphology, adventitious and lateral root number, root mass density, phototropism, osmotic stress sensitivity, flower and gynoecium development, phyllotaxy, and brassinosteroid sensitivity. Studies of related genes in other species connect the family to vascular development, root meristem growth, shoot regeneration, and auxin transport.