TPS1 — Sorghum bicolor

Summary

SORBI_3009G200200 (SbTPS1) on sorghum chromosome 9 encodes a protein with trehalose-6-phosphate synthase activity (EC 2.4.1.15), transglucosylase activity, and transglycosidase activity, belonging to the Trehalose_OtsA, Glyco_trans_20, Trehalose_PPase, HAD-like_sf, and HAD_sf domain families. The gene is associated with trehalose biosynthesis, carbohydrate metabolism, phosphate metabolism, and biological processes including vegetative growth, root development, cell division, embryo development, cell wall biogenesis, and response to long-day flowering. SbTPS1 is linked to grain filling period, ethylene sensitivity, cold tolerance, starch mobilization, carbon availability, flowering, embryo development, vegetative growth, seed maturation, thermotolerance, shoot branching, cell wall biosynthesis, plant growth, vegetative phase change, starch accumulation, postembryonic growth, grain yield, phosphorylation regulation, seed development, embryo maturation, growth recovery, clubroot resistance, stomatal aperture, ABA sensitivity during seed germination, circadian phase adjustment, TMTT terpenoid emission, systemic immunity, reduced enzyme activity in embryo development, terpenoid production, and slow growth with delayed flowering and ABA hypersensitivity. The protein localizes to the cytoplasm and nucleus. Studies of related genes in other species link the TPS family to flowering time, abiotic stress tolerance, ABA sensitivity, and embryogenesis