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From design to validation of CRISPR/gRNA primers towards genome editing

CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas9 (CRISPR-associated system) is used to edit specific genomic sequences with precision and efficacy. There are many online platforms/software for the design of gRNAs and related primers. However, there are concerns in design regarding off-site deletions besides knocking out sequences in the target genes. Nonetheless, a well known robust platform for CRISPR/gRNA primers design is CRISPRdirect. We demonstrate the use of this tool in the design of CRISPR/gRNA primers for soluble starch synthases (SSS) II-1, 2, and 3 genes in the Oryza sativa genome followed by the PCR-mediated amplification of SSS genes with corresponding confirmation towards genome editing having improved phenotype features.