MrBayes(进化树分析软件)下载|MrBayes(进化树分析软件)下载

这是MrBayes(进化树分析软件)，是一种贝叶斯估计的系统发育。贝叶斯推理的系统发育的基础上的数量称为后验概率分布是概率树，树的条件的观察。空调是使用贝叶斯定理。后验概率分布是不可能计算分析；相反，mrbayes使用模拟技术被称为马尔可夫链蒙特卡洛（或方法）近似的后验概率树。

软件介绍

MrBayes is a program for the Bayesian estimation of phylogeny. Bayesian inference of phylogeny is based upon a quantity called the posterior probability distribution of trees， which is the probability of a tree conditioned on the observations. The conditioning is accomplished using Bayes's theorem. The posterior probability distribution of trees is impossible to calculate analytically; instead， MrBayes uses a simulation technique called Markov chain Monte Carlo (or MCMC) to approximate the posterior probabilities of trees.

软件使用

使用贝叶斯法构建进化树的软件有很多。在这里简要介绍MrBayes的安装和使用。以下介绍是对几种贝叶斯法构建进化树软件的简介：
MrBayes is a program for Bayesian inference and model choice across a wide range of phylogenetic and evolutionary models. MrBayes uses Markov chain Monte Carlo (MCMC) methods to estimate the posterior distribution of model parameters.
BAMBE A nice program by Bret Larget and Donald Simon for the Bayesian inference of phylogeny.
Mac5 A program by Paul-Michael Agapow that deals with gaps as a fifth state.
Beast BEAST， written by Alexei Drummond and Andrew Rambaut， is a cross-platform program for Bayesian MCMC analysis of molecular sequences. It is particularly good for molecular clock analyses.
PHASE Paul Higgs is the author of Phase， designed specifically for use with RNA sequences that have a conserved secondary structure， e.g. rRNA and tRNA.