Replication Timing Becomes Intertwined with 3D Genome Organization.

Through dissecting the link between spatial genome organization and DNA replication timing, Sima et al. (2018) discover early replicating control elements (ERCEs), a new type of cis-acting elements that regulate replication timing, transcription, and multiple layers of three-dimensional features of genome organization. The study has important implications for unraveling control elements of high-order genome structure and function.