Characterization and Functional Analysis of a Small GTP-binding Protein AtRAB Interacting with H+-Pyrophosphatase AVP1 in Arabidopsis thaliana Cloning of the Full-length cDNA of the Wheat Involved in Salt Stress: Root Hair Defective 3 Gene (RHD3) Research Progress on Rab Proteins in Plants Cloning, Expression and Characterization of an ADP-ribosylation Factor Gene from Cotton (Gossypium hirsutum L.) Cloning and expression analysis of the wheat gene TaRop2 encoding a small GTP-binding protein Cloning and expression analyses of the wheat gene TaRop3 encoding a small GTP-binding protein