What question did this study set out to answer?

The aim is to explore the high heritability of quantitative traits and understand how environmental fluctuations affect genetic variation.

March 8, 2026GeneticsOpen Access

Strong amplification of quantitative genetic variation under a balance between mutation and fluctuating stabilizing selection

View Full Paper

Ask AI

Bookmark

Authors

This analysis shows how fluctuating selection influences genetic variation in traits, suggesting a new direction for models.

The aim is to explore the high heritability of quantitative traits and understand how environmental fluctuations affect genetic variation.
Revisits the Latter-Bulmer model with relaxed assumptions of environmental stasis.
Assumes slow, stochastic changes in trait optimum.
Analyzes the feedback between adaptation rates and selection coefficient fluctuations.
Derives a formula to predict genetic variation under the new model.
The new model predicts heritability more consistently with empirical observations.
It demonstrates less sensitivity to evolutionary parameters than classical models.
Behavior of the model differs qualitatively from stationary optimum models, despite slow changes.

bertram et al. (2026) studied this question.

View Full Paper

Ask AI

Bookmark