Construction of a Rubisco Fusion Gene and Its Expression in E. coli Chloroplast Localization of the Expressed Protein Encoded by At3g61870 in Arabidopsis thaliana cDNA Cloning and Structural Analysis of Granule-bound Starch Synthase Gene of Hairy Roots of Astragalus membranaceus Study on Subcellular Localization of Two Expressed Proteins in Arabidopsis thaliana