Simultaneous multi-site editing of individual genomes using retron arrays

Area of Science:

• Genomics
• Synthetic Biology
• Molecular Biology

Background:

• Current genomic technologies limit our understanding of complex genomes.
• Existing CRISPR-based methods typically multiplex across genomes, not within a single genome.
• Simultaneous, multi-site genome editing is laborious and inefficient.

Approach:

• Developed a novel 'multitron' technology for simultaneous, precise modification of multiple genomic sites.
• The multitron is a modified retron producing multiple donor sequences from a single transcript.
• This approach is compatible with both prokaryotic recombineering and eukaryotic CRISPR editing.

Key Points:

• Enables precise modification of multiple, non-adjacent sites on a single genome in one step.
• Overcomes the bottleneck of iterative editing and single-cell isolation.
• Demonstrated utility in molecular recording, genetic element minimization, and metabolic engineering.

Conclusions:

• The multitron technology offers a scalable solution for complex genome engineering.
• This advancement significantly enhances the efficiency and scope of synthetic biology applications.
• Facilitates deeper understanding and manipulation of genomic complexity.