FG — Solanum tuberosum

Summary

StFG (PGSC0003DMG400042340) on potato chromosome 12 encodes a CONSTANS-like protein with a CCT domain and is annotated with diverse molecular functions including OGTase, peptide-O-fucosyltransferase, protein N-GlcNAc transferase, glutamate-tRNA ligase, histone methylase, and red/far-red light photoreceptor activities. The gene is associated with regulation of phytochrome signaling, zeatin and trans-zeatin anabolism, chlorophyll breakdown upregulation, short-day photoperiodism and flowering, flower formation, response to long and short days, and ascorbate biosynthesis regulation. It localizes to the CCAAT-binding factor complex, COP9 signalosome, nuclear ubiquitin ligase complex, and other nuclear bodies. Associations include traits such as photoperiod sensitivity, tuber size, vegetative vigor, leaf morphology, seed protein content, and responses to water stress, nitrogen, nitrate, and glyphosate. Related genes in other species link the CONSTANS-like family to photoperiod-dependent flowering time, tuberization, heat stress tolerance, and disease resistance.