AP2 — Solanum tuberosum

Summary

StAP2 (PGSC0003DMG400006482) on potato chromosome 3 encodes an APETALA2 protein containing an AP2/ERF DNA-binding domain. It has DNA binding, transcription corepressor activity, and protein homodimerization activity, localizing to the nucleus and cytoplasm. The gene is associated with flower formation, specification of floral organ identity, regulation of seed development, and regulation of starch biosynthetic process. It is linked to flowering time, floral organ development, inflorescence architecture, and seed abscission. Associations also include starch yield and content, drought tolerance, photosynthetic rate, root morphology, nitrate transport, jasmonic acid content, lycopene accumulation, fruit ripening, and somatic embryogenesis. Studies of related genes in other species link the family to flower and seed development, ovule number, and Fusarium wilt resistance.