Genetic Transformation of Human IL-12 Driven by Tuber-specific Promoter from Potato(Solanum tuberosum) An Efficient Protocol for Agrobacterium-mediated Transformation with Microtuber and the Introduction of an Antisense class Ⅰ patatin Gene into Potato Function of classⅠpatatin Gene in Potato Microtuber Formation The Construction of the Plasmid Containing the Chimaeric Patatin-GUS Gene and Its Expression in Potato