
bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown
Опубликована: Апрель 21, 2024
Abstract Contingency (or ‘luck’) in early life plays an important role shaping individuals’ development. When individuals live within larger societies, social experiences may cause the importance of contingencies to be magnified or dampened. Here we test hypothesis that competition magnifies contingency a sex-specific manner by comparing developmental trajectories genetically identical, free-living mice who either experienced high levels territorial (males) did not (females). We show male territoriality results competitive feedback loop and pushes onto divergent, self-reinforcing trajectories, while same process appears absent females. Our indicate strength sexual selection self-limiting, as within-sex increases contingency, thereby reducing ability lead evolution. They also demonstrate potential for dramatic differences outcomes, even absence any underlying (‘merit’).
Язык: Английский