FG — Solanum tuberosum

Summary

StFG (PGSC0003DMG401010056) on potato chromosome 2 encodes a CONSTANS-like protein containing B-box and CCT domains, and is annotated with diverse molecular functions including OGTase, peptide-O-fucosyltransferase, and histone methylase activities. The gene is associated with regulation of the phytochrome signaling pathway, photoperiodic flowering, chlorophyll breakdown, and zeatin biosynthesis. StFG has been linked to numerous agronomically important traits including tuber size, photoperiod sensitivity, water stress response, nitrogen sensitivity, iron content, seed protein content, vegetative vigor, leaf angle, and far-red/red light sensitivity. It is also connected to fruit set, flower abscission, and inflorescence branch arrangement. Studies of related genes in other species link the family to photoperiod-dependent flowering time, tuberization, stress tolerance, root architecture, and disease resistance.