Phylogenetic Curved Optimal Regression for Adaptive Trait Evolution.

ABSTRACT: Regression analysis using line equations has been broadly applied in studying the evolutionary relationship between the response trait and its covariates. However, the characteristics among closely related species in nature present abundant diversities where the nonlinear relationship between traits have been frequently observed. By treating the evolution of quantitative traits along a phylogenetic tree as a set of continuous stochastic variables, statistical models for describing the dynamics of the optimum of the response trait and its covariates are built herein. Analytical representations for the response trait variables, as well as their optima among a group of related species, are derived. Due to the models' lack of tractable likelihood, a procedure that implements the Approximate Ba

SUBMITTER: Jhwueng DC 

PROVIDER: S-EPMC7916804 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature