AP2 — Cucumis sativus

Summary

CsAP2 (CSA_3G736760) on cucumber chromosome 3 encodes a DNA-binding transcription factor with AP2/ERF domains, possessing transcription corepressor and coactivator activity, blue light photoreceptor activity, and protein homodimerization activity. It is associated with regulation of floral organ abscission, seed abscission, sex determination, seed development, and downregulation of photosynthesis. The gene is linked to traits including seed color, fruit length, branch angle, photoperiod-sensitive flowering time, plant male sterility, starch grain synthesis, and responses to aphids, rice thrips, and jasmonic acid. It localizes to the nucleus, cytosol, nucleolus, Cajal body, and SCF complex. Related genes in other species are associated with trichome development, seed mucilage production, tannin accumulation, drought tolerance, and defense against pathogens and insects.