Cloning, Characterization and Expression of a Putative Galactinol Synthase Gene from Cold Stressed Pepper (Capsicum annuum L.) Gene Cloning, Bioinformatic Analysis and Preliminary Functional Characterization of Gene Encoding Galactinol Synthase 3 in Jatropha curcas Advance in Raffinose Family Oligosaccharides Metabolism and the Key Enzymes in Plants Cloning, Characterization and Expression of a Putative Galactinol Synthase Gene from Cold Stressed Pepper (Capsicum annuum L.)