This invention relates to transgenic plants for producing products of interest such as proteins. Since the transgenic plants according to the invention are cultured in large quantities without culturing tissues and their heredity is preserved through several generations, the invention can yield the products of interest such as proteins in bulk. The invention also provides transgenic plants that are available to the analysis of genomic functions and the production of plants expressing genes by regulating the timing of the expression of the gene of interest by use of proper expression vectors.
