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Structure of T-DNA region of pSGΩ. Pnos, 5′-upstream region of nopaline synthase gene. NPT-II, Coding region of nopaline synthase gene. Tnos, Polyadenylation region of nopaline synthase gene. El2, 5′-upstream region of CaMV 35S promoter (−419 to −90) × 2. P35S, 5′-upstream region of CaMV promoter (−90 to −1). Ω, 5′-Untranslated region of tobacco mosaic virus.
