SPS — Beta vulgaris subsp. vulgaris

Summary

BvSPS (BVRB_8G193450) on sugar beet chromosome 8 encodes a protein with sucrose-phosphate phosphatase activity, sucrose-phosphate synthase activity, sucrose synthase activity, protein serine/threonine phosphatase activity, and other annotated molecular functions, and contains SPS_C, SPS_pln, SPP-like_dom, Sucrose_synth, Glyco_trans_1, and HAD_sf domains. The gene is associated with sucrose anabolism and metabolism, nectar secretion, pollen wall assembly, protein dephosphorylation, regulation of abscisic acid-mediated signalling, stomatal movement, and responses to heat, cold, and abscisic acid. It localises to the cytosol, nucleus, endoplasmic reticulum, plasmodesma, and plasma membrane. Associations include vegetative vigor, photosynthetic rate, seed yield, flowering time, root and shoot development, anthocyanin content, and disease tolerance. Related genes in other species link the family to abscisic acid signalling, stomatal regulation, drought tolerance, and stress responses.