Introduction

Inference of population stratification and individual admixture from genetic markers is an integrative part of a study in diverse situations, such as association mapping and evolutionary studies. Bayesian methods have been proposed for population stratification and admixture inference using multilocus genotypes and widely used in practice. However, these Bayesian methods demand intensive computation resources and may run into convergence problem in Markov Chain Monte Carlo based posterior samplings.We have developed PSMIX, an R package based on maximum likelihood method using expectation-maximization algorithm, for inference of population stratification and individual admixture.Compared with software based on Bayesian methods (e.g., STRUCTURE), PSMIX has similar accuracy, but more efficient computations.PSMIX and its supplemental documents are freely available at http://bioinformatics.med.yale.edu/PSMIX.

Publications

  1. PSMIX: an R package for population structure inference via maximum likelihood method.
    Cite this
    Wu B, Liu N, Zhao H, 2006-06-01 - BMC bioinformatics

Credits

  1. Baolin Wu
    Developer

    Division of Biostatistics, School of Public Health

  2. Nianjun Liu
    Developer

  3. Hongyu Zhao
    Investigator

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Summary
AccessionBT000189
Tool TypeApplication
Category
PlatformsLinux/Unix
TechnologiesC, R
User InterfaceTerminal Command Line
Download Count0
Submitted ByHongyu Zhao