MELO3C024196.2 — Cucumis melo

Summary

MELO3C024196.2 (CmHY3) on melon chromosome 2 encodes a phytochrome family member, a photoreceptor with a tetrapyrrole-binding domain. The gene is associated with detection of light, regulation of response to red or far-red light, and positive regulation of the phytochrome signaling pathway. It has been linked to numerous agronomic traits, including grain yield, panicle number, flower diameter, fruit set, leaf area, branch angle, photoperiod sensitivity, far-red and blue light sensitivity, chlorophyll ratio, vegetative vigor, plant dry weight, and responses to copper, glyphosate, and plant growth hormones. Associations also include phenotypes such as delayed flowering, shoot regeneration, continuous light tolerance, chlorophyll accumulation, anthocyanin synthesis, disease resistance, drought and cold stress responses, and nitrogen, potassium, and phosphorus utilization. Studies of related genes in other species connect the family to fruit ripening, carotenoid content, tuberization, and salinity tolerance.