GLN — Capsicum annuum

Summary

CaGLN (T459_29165) on pepper chromosome 12 encodes a glutamine synthetase (EC 6.3.1.2) with glutamine synthetase activity, and is also annotated for glutamate-tRNA ligase, histone acetyltransferase, SUMO transferase, and calmodulin binding activities. The gene is associated with the ammonia assimilation cycle, nitrate assimilation, abscisic acid and ethylene anabolism, starch anabolism, leaf senescence, and responses to cadmium and blue light. It localises to the chloroplast thylakoid membrane, envelope, stroma, plastid, and plant-type vacuole. CaGLN is associated with fruit weight, sugar and protein content, photosynthetic rate, drought tolerance, flowering time, root nitrogen content, plant dry weight, and cytoplasmic male sterility. Studies of related genes in other species connect the family to seed yield, ammonium homeostasis, and rosette biomass.