Regeneration of Transgenic Nicotiana benthamiana Raised from the Genome-Edited Protoplast

Plant genome editing is an emerging technique that has revolutionized plant genome engineering which helps to edit the plant genome precisely for the development of traits in many crops. Specifically, with clustered regularly interspaced short palindromic sequence (CRISPR)-CRISPR-associated protein (Cas) system, a progressive improvement in genome editing has been achieved with protoplast. Though protoplast isolation, transfection, and regeneration are available for many plants, regeneration of protoplast for many plants remains major challenge. In this methodology chapter, we outlined the construction of sgRNA for genome editing, transfection, and regeneration of transgenic N. benthamiana from the genome-edited protoplast and assay for gene targeting.