ARF8 — Lactuca sativa

Summary

LsARF8 (ARF8) on chromosome 3 of garden lettuce encodes a protein containing ARF, AUX/IAA, PB1, and B3 DNA-binding domains, and is annotated as a DNA-binding transcription factor with promoter-specific chromatin binding activity. The gene is associated with petal morphogenesis, filament development, de-etiolation, geotropism, callus formation, regulation of seed dormancy and germination, and downregulation of lateral root development and gibberellic acid signaling. It is linked to traits such as petal length, stem elongation, adventitious root number, photosynthetic rate, plant male sterility, and abiotic stress response. Related genes in other species are associated with parthenocarpy, floral organ development, auxin homeostasis, and drought tolerance.