Technological advances in extrachromosomal circular DNA detection.

Advances in sequencing and genome editing have significantly improved detection and understanding of extrachromosomal circular DNA (eccDNA), revealing new insights into genome organization.

• Why it matters: Understanding eccDNA is crucial because it influences genome plasticity, cancer progression, drug resistance, and evolution, yet detection methods have lagged behind biological importance.
• What they did: The review evaluates over a dozen high-throughput sequencing techniques, discussing their principles, strengths, limitations, and applications, while also proposing new visualization and multi-omics strategies.
• The result: These technological advances enable more precise eccDNA analysis at the cellular level, opening avenues for improved research into genome function and potential therapeutic targets.