AP2 — Daucus carota subsp. sativus

Summary

DCAR_006477 (DcAP2) encodes a protein containing an AP2/ERF domain, with DNA-binding, transcription coactivator and corepressor binding activities, and blue light photoreceptor activity. It is associated with the regulation of floral organ abscission, seed abscission, seed development, endosperm development, seed coat development, cell wall thickening, and plant epidermal cell fate specification. The gene has been linked to traits including seed color, seed coat morphology, branch angle, photoperiod-sensitive flowering time, plant male sterility, starch grain synthesis, shoot system elongation rate, and responses to aphids, thrips, jasmonic acid, and cytokinin. It localizes to the nucleus, cytosol, nucleolus, Cajal body, SCF complex, and transcription regulator complex. Studies of related genes in other species link the family to trichome development, mucilage production, tannin accumulation, drought tolerance, and defense against pathogens and insects.