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Diagram of the constructs used in plant transformation experiments. A, T-DNA containing the CER6 promoter-GUS gene fusion used to evaluate the tissue specificity of CER6 expression in Arabidopsis and tobacco plants. B, Structure of the 3.6-kb CER6 genomic clone used to construct the 1×, 2×, and 3× expression cassettes. C, T-DNA containing one, two, and three copies (1×, 2×, and 3× expression cassettes, respectively) of the CER6 genomic clone used to transform Arabidopsis plants.
