AP2 — Daucus carota subsp. sativus

Summary

DCAR_025748 (DcAP2) on carrot chromosome 7 encodes a DNA-binding transcription factor with transcription corepressor activity, belonging to the AP2/ERF domain superfamily. It is associated with the regulation of floral organ abscission, seed abscission, flower formation, cell wall thickening, secondary growth, and specification of floral organ identity. The gene is linked to negative regulation of transcription by RNA polymerase II, gibberellic acid homeostasis, meristem maintenance, and vascular tissue pattern formation. Associations include flowering time, lycopene accumulation, fruit ripening, seed yield, root morphology, photosynthetic rate, and jasmonic acid content. The protein localizes to the nucleus, cytoplasm, and transcription regulator complex. Related genes in other species link the family to floral development, seed coat mucilage production, and floral meristem determinacy.