SFR2 — Medicago truncatula

Summary

MTR_4G122980 (MtSFR2) encodes a protein with beta-glucosidase and galactolipid galactosyltransferase activities, belonging to the glycosyl hydrolase family 1. In barrel medic, the gene is associated with multiple cellular compartments including the chloroplast envelope, plastid, plasma membrane, cytosol, and nucleus. MtSFR2 is associated with diverse biological processes such as pigmentation, embryogenesis, somatic embryogenesis, regulation of stomatal movement, response to freezing, and anthocyanin, isoflavonoid, and alkaloid anabolism. It is also linked to upregulation of abscisic acid-mediated signaling and regulation of reactive oxygen species metabolic process. The gene is associated with traits including biomass yield, seed yield, leaf elongation rate, photosynthetic rate, water use efficiency, chlorophyll content, flowering time, root thickness, and responses to low temperature and osmotic stress. Studies of related genes in other species link the family to freezing tolerance, chloroplast protection against freeze-induced damage, and stomatal ABA responsiveness.