PGSC0003DMG400003072 — Solanum tuberosum

Summary

StHY3 (PGSC0003DMG400003072) on potato chromosome 2 encodes a phytochrome family member, containing domains characteristic of phytochrome photoreceptors including PAS, GAF, and histidine kinase domains, and is associated with tetrapyrrole binding. The gene is linked to regulation of response to red or far-red light, positive regulation of the phytochrome signaling pathway, and detection of light. Associations include traits such as photoperiod sensitivity, far-red and blue light sensitivity, light quality response, chlorophyll ratio, plant growth hormone response, grain yield, tuber size, vegetative vigor, plant dry weight, leaf area, and flower diameter. Phenotypic associations include shoot regeneration, continuous light tolerance, chlorophyll accumulation, anthocyanin synthesis, nitrogen and potassium utilization, phosphorus deficiency tolerance, cold and drought stress responses, disease resistance, and defense response. Studies of related genes in other species link the phytochrome family to tuberization, fruit ripening, senescence, and biotic stress resistance.