Abstract: A method is disclosed for the Agrobacterium-mediated germline transformation of soybean, comprising infecting split soybean seeds, with a portion of the embryonic axis, with Agrobacterium tumefaciens containing a transgene. The method can further comprise regenerating the explants produced from the transformation of the split soybean seeds comprising a portion of embryonic axis in vitro on selection medium.

Abstract: A method is disclosed for the Agrobacterium-mediated germline transformation of soybean, comprising infecting split soybean seeds, with a portion of the embryonic axis, with Agrobacterium tumefaciens containing a transgene. The method can further comprise regenerating the explants produced from the transformation of the split soybean seeds comprising a portion of embryonic axis in vitro on selection medium.

Abstract: A primary object of this invention is to provide a method which will enable to coexpress simultaneously two (or more) desired genes in plant, animal or yeast cells, in transgenic plants and animals, or in vitro, in plant cell-derived or animal cell-derived translation systems. This objection is to be accomplished by utilizing sequence elements derived from RNAs of a tobamovirus upstream of MP gene or CP gene termed here as IRESMP and IRESCP , respectively. The method of this invention involves the construction of a recombinant nucleic acid sequence which comprises a specific transcriptional promoter, a first gene expressible in eukaryotic cells linked to said transcriptional promoter, IRESMP or IRESCP located 3? to the first gene and a second gene expressible in eukaryotic cells, located 3? to IRES sequence such that the second gene is placed under the transcriptional control of IRES sequence originated from tobamovirus genome.

Abstract: The present invention is drawn to a recombinant nucleic acid having (a) a transcriptional promoter; (b) a first plant-expressible structural gene linked to the transcriptional promoter, (c) a cDNA sequence element having an internal ribosome entry site of tobamovirus moving protein (MP) gene (IRESmp) which is located 3′ to the first plant-expressible structural gene, and (d) a second plant-expressible gene located 3′ to the (IRESmp) such that the second gene is placed under the translational control of (IRESmp); wherein the first plant-expressible gene, (IRESmp) and the second plant-expressible gene are transcribed under the action of the transcriptional promoter to give a primary transcript, and the first plant expressible gene of the primary transcript is able to translate by ribosome scanning mechanism and the second plant expressible gene of the primary transcript is capable of translation under the action of (IRESMP).

Abstract: A primary object of this invention is to provide a method which will enable to coexpress simultaneously two (or more) desired genes in plant, animal or yeast cells, in transgenic plants and animals, or in vitro, in plant cell-derived or animal cell-derived translation systems. This objection is to be accomplished by utilizing sequence elements derived from RNAs of a tobamovirus upstream of MP gene or CP gene termed here as IRESmp and IREScp , respectively. The method of this invention involves the construction of a recombinant nucleic acid sequence which comprises a specific transcriptional promoter, a first gene expressible in eukaryotic cells linked to said transcriptional promoter, IRESmp or IREScp located 3′ to the first gene and a second gene expressible in eukaryotic cells, located 3′ to IRES sequence such that the second gene is placed under the transcriptional control of IRES sequence originated from tobamovirus genome.