PHL1 — Zea mays

Summary

ZM00001EB306220, designated ZmPHL1 (also known as ZmPHR2, ZmPHR1, and PHL4) on maize chromosome 7, encodes a protein with DNA binding, transcription coactivator, SUMO transferase, and SUMO binding activities, belonging to the PHR1-like MYB-CC family. The gene is associated with positive regulation of cellular response to phosphate starvation, regulation of phosphate transport, sulfate homeostasis, regulation of nitrate assimilation, response to high light intensity, and response to arsenite ion. It is linked to carotenoid breakdown, arabinose and glutamate metabolism, polyamine transport, and downregulation of systemic acquired resistance and unidimensional cell growth. Associations with agronomic traits include phosphorus response, seed protein content, seed set percent, whole plant size, shoot system elongation rate, root volume and number, lateral root number, trichome morphology trait, chloroplast development trait, pollen fertility, and responses to aluminum, copper, cytokinin, gibberellic acid, and high temperature stress.