September 30, 2025Open Access

Adaptive Dynamics of Quantitative Traits in a Steadily Changing Environment

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Adaptive walk model reveals relationships between trait architecture and effective selection strength.

Adapting populations reach a stationary state below a critical environmental change speed, indicating limits to adaptation.
The effective selection strength characterizes quantitative traits, directly linking to population dynamics and extinction.
Analysis via adaptive walk model shows its good approximation for long-term polygenic adaptation in evolving traits.
Polygenic simulations highlight how genetic architecture is shaped by de novo mutations and fixation-exit processes.

Pahujani et al. (2025) studied this question.

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