• Centromeres play virtually the same central role across the entire tree of life: They ensure the faithful segregation of chromosomes during cell division. • Yet the striking diversity in centromere architecture-from large, repeat-rich DNA arrays to the minimalistic “point” centromeres in yeast-combined with their rapid evolution has puzzled scientists for decades.
Article Summaries:
- Scientists have shed new light on the evolution of centromeres, the chromosome structures that ensure accurate segregation during cell division. Despite their universal role across life, centromeres vary widely-from large, repeat‑rich arrays in many organisms to the compact “point” centromeres of yeast. Recent studies reveal that this architectural diversity is driven by rapid evolutionary changes, challenging long‑standing assumptions about centromere stability. By comparing centromere sequences across species, researchers are uncovering the mechanisms that allow these essential DNA regions to adapt while maintaining their critical function in chromosome inheritance.
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