Method for identifying copy number of T-DAN tandem repeat sequences in transgenic plant through real-time fluorescence quantification PCR method
The invention discloses a method for identifying the copy number of T-DAN tandem repeat sequences in a transgenic plant through a real-time fluorescence quantification PCR method. The method comprises the following steps: connecting an HMGA gene to a plant expression vector Pski015 containing a scre...
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Zusammenfassung: | The invention discloses a method for identifying the copy number of T-DAN tandem repeat sequences in a transgenic plant through a real-time fluorescence quantification PCR method. The method comprises the following steps: connecting an HMGA gene to a plant expression vector Pski015 containing a screening gene BAR through a Southern Buddhism mediated plant transformation method; then transfecting wild Col-4 arabidopsis; connecting the vector with two reference plasmids; extracting RNA of glyphosate-screened transgenic arabidopsis and carrying out inverse transcription to obtain cDNA as a detection template; and detecting the copy number of a mutant plant in a way of real-time quantification PCR respectively by virtue of quantitative primers of a glyphosate-resistance gene and the HMGA gene. The method disclosed by the invention has the beneficial effects that the influence of a T-DAN tandem structure on identification of the copy number of a transgenic plant can be effectively shielded; and compared with Southern blot, quantification PCR is more convenient and more efficient. |
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