Abstract
Polyethylene glycol (PEG)-mediated transient expression system in plant protoplasts has been widely used in a variety of plants for gene function characterization. However, such a system has not been developed for strawberry. In this study, we report a method for obtaining high quality and high yield protoplasts from strawberry leaves. In addition, we developed an efficient transient gene expression system based on the PEG-mediated method, and the system has been successfully applied to studies of protein expression, protein subcellular localization and protein–protein interaction in strawberry. Furthermore, the CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR-associated 9) technology was used to enable targeted mutagenesis of the FvTCP17 gene in strawberry protoplasts. Taken together, our results demonstrate the potential of this highly efficient mesophyll protoplast system for transient gene expression and induction of CRISPR/Cas9-mediated genome editing in strawberry. We report a highly efficient mesophyll protoplast system for transient gene expression and induction of CRISPR/Cas9‐mediated genome editing in strawberry.
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