PP2A — Solanum tuberosum

Summary

PGSC0003DMG400022604, designated StPP2A on potato chromosome 5, encodes a protein with serine/threonine phosphatase activity and a calcineurin-like phosphoesterase domain, and is annotated with protein phosphatase regulator and activator functions as well as kinase and DNA-binding activities. The gene is associated with brassinosteroid signaling, TOR signaling, and the regulation of abscisic acid anabolism, and its product localises to the PP2A complex, nucleus, cytosol, and ER membrane. StPP2A is linked to numerous agronomic traits including biomass yield, seed yield, leaf elongation rate, root hair length, lateral root length, transpiration rate, and responses to water, cadmium, aluminum, nitrate, and high temperature stress. Studies of related genes in other species connect the PP2A family to phosphorus deficiency tolerance, ethylene signal transduction, iron acquisition, and salinity tolerance.