The many faces of an aging germline: reduced germline mutation rate at reproductive peak
Germline mutations (GMs) are the ultimate source of genetic diversity, and germline mutation rate (GMR) isthus central to evolutionary biology. However, while GMs primarily arise during DNA replication in the parentalgermline and should accumulate with increasing parental age, studies showed that GMR does not necessarilytrack germ cell divisions. This suggests that GMR is subjected to selection an