Inferring ecDNA Evolution from Allele Frequency Spectra
This paper introduces ecEvol, a computational method that analyzes allele frequency spectra from bulk whole-genome sequencing to infer the timing, selection strength, and clonal dominance of extrachromosomal DNA (ecDNA) emergence, revealing that early ecDNA formation driven by oncogenes correlates with poorer patient survival and that ecDNA dynamics vary significantly between untreated and advanced tumors.