2015/08/13 by Dwueng-Chwuan Jhwueng, Vasileios Maroulas, Jhwueng, Dwueng-Chwuan +1
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · #60H30 #62J12 #62P10 #Applications (stat.AP) #Evolution and Genetic Dynamics #Evolution and Paleontology Studies #FOS: Computer and information sciences #Genetic diversity and population structure
paper · pdf · doi:10.48550/arxiv.1508.03103
openalex publication_date 2015/08/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Current phylogenetic comparative methods generally employ the Ornstein-Uhlenbeck(OU) process for modeling trait evolution. Being able of tracking the optimum of a trait within a group of related species, the OU process provides information about the stabilizing selection where the population mean adopts a particular trait value. The optima of a trait may follow certain stochastic dynamics along the evolutionary history. In this paper, we extend the current framework by adopting a rate of evolution which behave according to pertinent stochastic dynamics. The novel model is applied to analyze about 225 datasets collected from the existing literature. Results validate that the new framework provides a better fit for the majority of these datasets.