Abstract
In order to transcription and expression an exogenous gene just in transgenic strawberry fruit, the gene encoding tomato fruit-specific E8 promoter was cloned. We constructed plant expression vector with E8 promoter replace the CaMV35S of pBI121 that used for transformation of strawberry. Recombination plasmid was identified by PCR, restriction enzymes digestion and sequencing analysis, and transfered into the agrobacterium EHA105 strain. At the same time, the agrobacterium EHA105, transformation and no transformation tissue of strawberry used as the experiment materials to study the expression of reporter genegusAby the histochemical staining method. The results show that agrobacterium which containsgusAgene and strawberry organization of transformation can be dyed blue, others were not stain. So in testing the transgenic plants by agroinfiltration transient expression system can reduce or avoid false positive appearance.
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