The plant expression vectors with and without MARs were transferred into tobaccos (Nicotiana tabacum L.) via Agrobacterium-mediated transformation procedure.

• 将此载体与不包含MARs序列的植物表达载体经根癌土壤杆菌(Agrobacterium tumefaciens (Smithet Townsend) Conn)介导转化烟草(Nico tianatabacum L.；)。