AP2 — Capsicum annuum

Summary

CaAP2 (T459_18202) on pepper chromosome 6 encodes a floral homeotic APETALA 2 protein containing an AP2/ERF DNA-binding domain. The gene product exhibits transcription coactivator and corepressor activities, blue light photoreceptor activity, and protein homodimerization. CaAP2 is associated with regulation of floral organ abscission, seed development and abscission, starch biosynthesis, mannose and nucleotide metabolism, polyamine anabolism, photoentrainment of the circadian clock, and negative regulation of cellulose biosynthesis and innate immunity. It has been linked to traits including seed color, branch angle, photoperiod-sensitive flowering time, plant male sterility, salt response, potassium sensitivity, aphid and insect damage response, trichome morphology, shoot system elongation, and vegetative growth time. The protein localizes to the nucleus, cytosol, nucleolus, Cajal body, SCF complex, and transcription regulator complex.