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Structure of pSH4-GUS (A) and 35S-GUS (B) constructs for rice (Nipponbare) transformation. Tnos: terminator of nopaline synthetase; HYG(R): hygromycin-resistence gene; 35S: cauliflower mosaic virus (CaMV) 35S promoter; pSH4: SH4 promoter; XbaI and BglII indicate restriction sites; gusA: β-glucuronidase (GUS) gene; RB: right border; LB: left border.
