CSA_1G461000 — Cucumis sativus

Summary

CsHY3 (CSA_1G461000) on cucumber chromosome 1 encodes a protein with PAS, GAF, and histidine kinase domains characteristic of phytochromes. The gene is associated with tetrapyrrole binding and protein-bilin linkage. CsHY3 is linked to regulation of responses to red and far-red light, positive regulation of phytochrome signaling, and modulation of chlorophyll metabolism. It is associated with numerous agronomic traits including grain yield, panicle number, flower diameter, fruit set, leaf area, plant dry weight, vegetative vigor, and photoperiod sensitivity. Associations also extend to stress responses including drought, cold, heat shock, and disease resistance, as well as nitrogen and phosphorus utilization, carbon assimilation, and root system morphology. Related genes in other species link the family to tuberization, fruit ripening, carotenoid accumulation, senescence, and biotic stress resistance.