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. 2018 Jan 26;9:53. doi: 10.3389/fpls.2018.00053

Figure 3.

Figure 3

PCR amplification of the nptII gene. M, DL marker 2 000; CKm negative control (non-transgenic poplar); CK+, positive control (plasmid pBtiA); the others are the 6-year-old transgenic lines. 19 transgenic lines and the positive control were all detected the expected bands (500 bp), while the negative control was not detected.