Targeted cytochrome P450 3045C1 (CYP3045C1) gene mutation via CRISPR-Cas9 ribonucleoproteins in the marine rotifer Brachionus koreanus

The CRISPR-Cas9 system has revolutionized genetic engineering and has been applied in numerous model organisms to date. To examine the capacity of the CRISPR-Cas9 system for generation of mutants in the marine rotifer Brachionus koreanus, we electroporated purified Cas9 proteins fused with GFP (Cas9-GFP) into rotifers. A dose-dependent increase in green fluorescent signal was highly detected in ovary and eggs. The purified Cas9-GFP proteins...