Abstract
Insertion of a specific sequence in a targeted region for precise editing is still a major challenge in plants. Current protocols rely on inefficient homology-directed repair or non-homologous end-joining with modified double-stranded oligodeoxyribonucleotides (dsODNs) as donors. We developed a simple protocol that eliminates the need for expensive equipment, chemicals, modifications of donor DNA, and complicated vector construction. The protocol uses polyethylene glycol (PEG)-calcium to deliver low-cost, unmodified single-stranded oligodeoxyribonucleotides (ssODNs) and CRISPR/Cas9 ribonucleoprotein (RNP) complexes into Nicotiana benthamiana protoplasts. Regenerated plants were obtained from edited protoplasts with an editing frequency of up to 50% at the target locus. The inserted sequence was inherited to the next generation; this method thus opens the possibility for the future exploration of genomes by targeted insertion in plants.
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Wu, FH., Hsu, CT., Lin, CS. (2023). Targeted Insertion in Nicotiana benthamiana Genomes via Protoplast Regeneration. In: Yang, B., Harwood, W., Que, Q. (eds) Plant Genome Engineering. Methods in Molecular Biology, vol 2653. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3131-7_19
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DOI: https://doi.org/10.1007/978-1-0716-3131-7_19
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