GT1 — Sorghum bicolor

Summary

SbGT1 (SORBI_3010G017100) on sorghum chromosome 10 encodes an oligopeptide transporter of the OPT family, with oligopeptide transmembrane transporter activity. The gene is associated with oligopeptide transport, protein transport, pollen sperm cell differentiation, and embryogenesis. It localises to the membrane, plasmalemma, and cytoplasm. SbGT1 is associated with cadmium tolerance, flowering time, glutathione transport, and phytochelatin content in sink organs, as well as cadmium distribution and glutathione content in shoots. Related genes in other species link the family to cadmium accumulation in reproductive sink organs, peptide transport, stress resistance, metal homeostasis, and zinc transport into shoots.