Family-based selection: an efficient method for increasing phenotypic variability.

ABSTRACT: Persistent idiosyncrasies in behavioral phenotypes have been documented across animal taxa. These individual differences among organisms from the same genotype and reared in identical environments can result in phenotypic variability in the absence of genetic variation. While there is strong evidence to suggest that variability of traits can be heritable and determined by the genotype of an organism, little is known about how selection can specifically shape this heritable variance. Here, we describe a Python-based model of directional artificial selection for increasing the variability of a polygenic trait of interest. Specifically, our model focuses on variability in left-vs-right turn bias in Drosophila melanogaster. While the mean value of turn bias for a genotype is non-heritable and

SUBMITTER: Lall S 

PROVIDER: S-EPMC12506656 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature