GLN — Solanum tuberosum

Summary

PGSC0003DMG400013235 (GLN) on potato chromosome 11 encodes a glutamine synthetase (EC 6.3.1.2) and is associated with glutamine synthetase activity, as well as glutamate-tRNA ligase, histone acetyltransferase, SUMO transferase, and calmodulin binding activities. The gene is associated with nitrogen compound transport, ammonia assimilation, nitrate import, and dicarboxylate metabolism, along with responses to water, oxidative stress, and abscisic acid. It has been linked to traits including chlorophyll content, nitrogen and phosphorus content, nitrate uptake, water use efficiency, photosynthetic rate, stomatal resistance, flowering time, and leaf senescence. Phenotypic associations include root development, seed yield, germination, ammonium metabolism, nitrogen remobilisation, salt and cold stress tolerance, and plant defense. Studies of related genes in other species link the family to lateral root development, ammonium tolerance, and circadian rhythm.