AP2 — Daucus carota subsp. sativus

Summary

DCAR_009289 (DcAP2) encodes a protein containing an AP2/ERF DNA-binding domain, with molecular functions including sequence-specific DNA binding, transcription coactivator and corepressor activity, and blue light photoreceptor activity. In carrot, DcAP2 is associated with the regulation of floral organ abscission, seed development and abscission, cell wall thickening, epidermal cell fate specification, starch biosynthesis, and jasmonic acid/ethylene-dependent systemic resistance. The gene has been linked to numerous traits including seed and seed coat color, branch angle, photoperiod-sensitive flowering time, plant male sterility, shoot system elongation rate, and responses to aphids, rice thrips, and other insects. It localizes to the nucleus, cytosol, nucleolus, Cajal body, and SCF complex. Related genes in other species are associated with trichome development, mucilage production, tannin accumulation, and defense against pathogens and insects.