Species tree estimation for the late blight pathogen, Phytophthora infestans, and close relatives.

ABSTRACT: To better understand the evolutionary history of a group of organisms, an accurate estimate of the species phylogeny must be known. Traditionally, gene trees have served as a proxy for the species tree, although it was acknowledged early on that these trees represented different evolutionary processes. Discordances among gene trees and between the gene trees and the species tree are also expected in closely related species that have rapidly diverged, due to processes such as the incomplete sorting of ancestral polymorphisms. Recently, methods have been developed for the explicit estimation of species trees, using information from multilocus gene trees while accommodating heterogeneity among them. Here we have used three distinct approaches to estimate the species tree for five Phytophthora

SUBMITTER: Blair JE 

PROVIDER: S-EPMC3355167 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature