Article ID Journal Published Year Pages File Type
6142340 Virus Research 2014 8 Pages PDF
Abstract

•A 35S promoter-driven infectious clone of PVX, pCaPVX100, was constructed.•Vector pCaPVX440 can express two foreign genes at the same time.•Plasmid pCaPVX760 can express foreign gene through gene substitution strategy.•Gene silencing vector pCaPVX440-LIC contains a ligation independent cloning site.

Multiple plant viruses, including potato virus X (PVX), have been modified as vectors for expressing heterologous genes or silencing endogenous genes in plants. PVX-based vectors facilitate the functional analysis of genes in plant. However, they can only express one protein in a time. In this paper we report the construction of new vectors based on a 35S promoter-driven PVX infectious clone, pCaPVX100. Vector pCaPVX440 contains two additional subgenomic promoters and can be utilized to express two foreign genes at the same time. Plasmid pCaPVX760 is a CP minus vector and can be used to express foreign proteins through the gene substitution strategy. In addition, plasmid pCaPVX100 was engineered into a gene silencing vector (pCaPVX440-LIC) by introducing a ligation independent cloning (LIC) site into the vector. These results indicate that the newly developed PVX vectors are competent for multiple research purposes.

Related Topics
Life Sciences Immunology and Microbiology Virology
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