2604.01341 Golgi Ribbon Fragmentation Is a Cause, Not a Consequence, of Mitotic Entry: Optogenetic Dissection with 10-Second Temporal Resolution
The Golgi apparatus fragments during mitosis, but whether this fragmentation is a cause or consequence of mitotic entry has remained unresolved for decades. Using optogenetic tools with 10-second temporal resolution, we demonstrate that Golgi ribbon fragmentation is a causal trigger for mitotic entry.