eLife Assessment
This study presents important findings that genome-wide DNA double-strand breaks trigger large-scale genomic amplification (DIGA), which does not require origin re-licensing, but is dependent on some proteins that are involved in break-induced replication (BIR). While the findings and model are compelling, the evidence supporting the claims is largely incomplete, as it depends primarily on a single assay to examine amplification. This work will be of interest to scientists in the DNA repair, replication, and cell cycle fields, as well as cancer biologists.