HY3 — Solanum lycopersicum

Summary

SOLYC10G044670.3 (HY3/PHYA) encodes a phytochrome A-E family member with domains including PAS, GAF, and histidine kinase, and is annotated with tetrapyrrole binding and numerous other molecular functions. This gene is associated with phytochrome chromophore anabolism, regulation of response to red or far-red light, and positive regulation of the phytochrome signaling pathway. It has been linked to a wide range of agronomic traits, including grain yield, harvest index, panicle length and number, fruit set, flower diameter, leaf area and weight, specific leaf weight, chlorophyll ratio, plant growth hormone response, light quality response, far-red light sensitivity, copper and glyphosate sensitivity, nitrate content, and vegetative vigor. The gene is also associated with phenotypes such as fruit ripening, lycopene accumulation and biosynthesis, shoot regeneration, salinity tolerance, drought and cold stress responses, disease resistance, and photoperiod detection.