TOR — Zea mays

Summary

ZM00001EB285840, designated ZmTOR on maize chromosome 6, encodes a protein with a TOR catalytic domain, FRB domain, and PI3/4-kinase catalytic domain. The gene product possesses protein serine/threonine kinase activity, protein complex binding, and transcription cis-regulatory region binding. ZmTOR is associated with cell cycle transition, rRNA transcription, microautophagy, pexophagy, polyamine and spermidine metabolism, microtubule dynamics, and response to potassium ion. It localises to the TOR complex, phosphatidylinositol 3-kinase complexes, and the ribosome. The gene is linked to agronomic traits including grain yield, seed size, plant height, leaf nitrogen content, chlorophyll content, water use efficiency, stomatal resistance, root number and thickness, panicle length, and abscisic acid concentration. Studies of related genes in other species link the family to root and leaf growth, photosynthesis, thermotolerance, virus resistance, and circadian rhythm.