Detection of Adaptive Shifts on Phylogenies by using Shifted Stochastic Processes on a Tree
利用树上参数突变随机过程检测系统发育中的适应性转变
Summary Comparative and evolutive ecologists are interested in the distribution of quantitative traits between related species. The classical framework for these distributions consists of a random process running along the branches of a phylogenetic tree relating the species. We consider shifts in the process parameters, which reveal fast adaptation to changes of ecological niches. We show that models with shifts are not identifiable in general. Constraining the models to be…