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MrBayes分子钟定年之程序

发表日期:2019-04-08来源:放大 缩小

作者:张 驰

摘要:介绍了利用MrBayes进行分子钟定年的研究概况和程序。利用一个整合分子序列和形态特征的膜翅目昆虫的数据,展示了两种现代方法:全证据定年和节点定年,并对这两种方法的相似点和不同之处进行比较和讨论。此外,还用无分子钟的方法对同一数据进行分析,并与分子钟定年法进行比较。
关键词:贝叶斯系统发育推断,分子钟定年,马尔可夫链蒙特卡罗,MrBayes
卷期:第57卷,第3期

Molecular clock dating using MrBayes
ZHANG Chi

Abstract   This paper provides an overview and a protocol of molecular clock dating using MrBayes. Two modern approaches, total-evidence dating and node dating, are demonstrated using a truncated dataset of Hymenoptera with molecular sequences and morphological characters. The similarity and difference of the two methods are compared and discussed. Besides, a non-clock analysis is performed on the same dataset to compare with the molecular clock dating analyses.
Key words   Bayesian phylogenetic inference, molecular clock dating, MCMC, MrBayes

 

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