The authors show that the assembly of the meiotic chromosome axis in worms depends on activation of the master DNA-damage response kinase ATM, which leads to destabilization of the cohesin-unloader WAPL. Similar ATM-dependent WAPL inhibition also occurs in cohesin-rich genomic regions upon DNA-damage induction.
- Zhouliang Yu
- Hyung Jun Kim
- Abby F. Dernburg