Abstract
Gene editing technologies have revolutionized plant molecular biology, providing powerful tools for precise gene manipulation for understanding function and enhancing or modifying agronomically relevant traits. Among these technologies, the CRISPR-Cas9 system has emerged as a versatile and widely accepted strategy for targeted gene manipulation. This protocol provides detailed, step-by-step instructions for implementing CRISPR-Cas9 genome editing in tomato plants, with a specific focus in generating knockout lines for a target gene. For that, the guide RNA should preferentially be designed within the first exon downstream and closer to the start codon. The edited plants obtained are free of transgene cassette for expression of the CRISPR-Cas9 machinery. Key features • Two sgRNAs employed. • Takes 6-12 months to have an edited transgene-free plant. • Setup in tomato.
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