AP2 — Daucus carota subsp. sativus

Summary

DcAP2 (DCAR_018848) on carrot chromosome 5 encodes a protein with an AP2/ERF domain, exhibiting transcription corepressor and coactivator activity, blue light photoreceptor activity, and protein homodimerization. It is associated with regulation of floral organ abscission, seed development, endosperm development, seed coat development, cell wall thickening, plant epidermal cell fate specification, starch biosynthesis, and photoentrainment of the circadian clock. The gene is linked to traits including seed color, seed coat morphology, photoperiod-sensitive flowering time, plant male sterility, branch angle, potassium sensitivity, metabolite content, shoot system elongation rate, whole plant size, and responses to aphids, insects, and jasmonic acid. It localizes to the nucleus, cytosol, nucleolus, Cajal body, SCF complex, and transcription regulator complex. Related genes in other species are linked to trichome development, mucilage production, tannin accumulation, drought tolerance, and defense against pathogens and insects.