Electroporation of zygotes represents a rapid alternative to the elaborate pronuclear injection procedure for CRISPR/Cas9-mediated genome editing in mice.However, current protocols for electroporation either require the investment in specialized electroporators or corrosive pre-treatment HAWTHORN BERRIES of zygotes which compromises embryo viability.Here, we describe an easily adaptable approach for the introduction of specific mutations in C57BL/6 mice by electroporation of intact zygotes using a common electroporator with synthetic CRISPR/Cas9 components and minimal technical requirement.
Direct comparison to conventional pronuclear injection demonstrates significantly reduced physical Mens Shavers damage and thus improved embryo development with successful genome editing in up to 100% of living offspring.Hence, our novel approach for Easy Electroporation of Zygotes (EEZy) allows highly efficient generation of CRISPR/Cas9 transgenic mice while reducing the numbers of animals required.