GLN — Daucus carota subsp. sativus

Summary

DcGLN (DCAR_011632) on carrot chromosome 3 encodes a glutamine synthetase (EC 6.3.1.2) with the Gln_synth_cat_dom domain, and is also annotated for glutamyl-tRNA ligase, histone acetyltransferase, SUMO transferase, calmodulin binding, and salicylic acid binding activities. The gene is associated with the ammonia assimilation cycle, nitrate assimilation, leaf senescence, response to abscisic acid, cadmium response, blue light response, and flower development regulation. It localizes to the chloroplast thylakoid membrane, chloroplast envelope, plastid, thylakoid, cytosolic ribosome, apoplast, and plant-type vacuole. Associations include starch grain synthesis, photosynthetic rate, respiration rate, photoperiod-sensitive flowering time, stomatal opening, root development, seed yield, seed germination, nitrogen remobilization, ammonium metabolism, salt stress response, cold stress tolerance, and reactive oxygen species homeostasis. Related genes in other species are linked to nitrogen assimilation, lateral root development, ammonium tolerance, senescence, and photoperiodic flowering time.