PHR1 — Zea mays

Summary

ZmPHR1 (ZM00001EB026960) on maize chromosome 1 encodes a class 2 DNA photolyase with CPD photolyase activity, FAD binding and DNA binding, and is a lyase (EC 4.1.99.3). The gene is associated with photoreactive repair, UV protection, DNA repair, and cyclobutane pyrimidine dimer photoreactivation. It is linked to phosphate homeostasis, phosphorus homeostasis, phosphate starvation response and acclimation, phosphate sensing, uptake and deficiency tolerance, as well as iron homeostasis, arsenate detoxification, and mineral nutrition. Associations also include lateral root development, root volume, root number, root length, lateral root number and formation, shoot development, chlorophyll content, chlorophyll fluorescence, photosynthetic rate, grain yield, drought tolerance, high light stress tolerance, hypoxia response, anthocyanin accumulation, triacylglycerol accumulation, carbon metabolism, pathogen resistance, jasmonate response, and auxin signaling. The protein localises to the plastid, cytoplasm and nucleus. Studies of related genes in other species link the family to photosynthesis efficiency, leaf senescence, phosphate signaling, and flowering time.