“…Subsequently, the application of electron microscopy and high-throughput sequencing showed that eccDNAs are ubiquitous in eukaryotes, such as Mus musculus ( mmu ) and Saccharomyces cerevisiae ( sce ) [3] , [4] . Regarding how eccDNA is generated, previous studies have proposed multiple potential models, including the DSBs (Double-Strand Breaks), BFB (Breakage-Fusion-Bridge) cycle, translocation-deletion-amplification, and Chromothripsis [5] , [6] . Recently, Yuangao Wang et.al.…”