Improving of in vitro Plant Regeneration Frequency of Rosa canina ( Rosaceae) Inermis Optimization of the Regeneration Protocol of Rosa canina cv.‘Edelcaninas’Meristem Overexpression of RaWUS Gene of Rosa canina Inducing Shoot Regeneration from Root Tip of Transgenic Tobacco Isolation and Expression Analysis of Cytokinin Dehydrogenase Gene RcCKX5 in Rosa canina Studies on the Histology and Ultrastructure of the Initiation of Rhizoids and Protocorm-like Bodies(PLBs)Induced from the Leaf Explants of Rosa canina ESTABLISHMENT OF GENETIC TRANSFORMATION SYSTEM IN PROTCORM LIKE-BODY (PLB) of Rosa canina CONSTITUTIVE EXPRESSION OF RaWUS GENE IN Rosa canina ON MORPHOLOGICAL ALTERATION OF TRANSGENIC TOBACCO LEAVES Cloning and Expression Analysis of PIN1 and PIN2 Encoding Auxin Efflux Carriers in Rosa canina Cloning and Expression Analysis of PIN1 and PIN2 Encoding Auxin Efflux Carriers in Rosa canina Studies on the Histology and Ultrastructure of the Initiation of Rhizoids and Protocorm-like Bodies(PLBs)Induced from the Leaf Explants of Rosa canina