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每日翻译20190731

已有 445 次阅读 2019-7-31 08:05 |个人分类:翻译作品|系统分类:论文交流| 物种边界, 时间标定, 系统发育树

#编者信息

熊荣川

明湖实验室

xiongrongchuan@126.com

http://blog.sciencenet.cn/u/Bearjazz


Analyses of mtDNA Branching Times

A statistical model was developed to test   for the predicted change in branching rates at the species boundary. The   overall aim of the procedure is to classify the observed branching time   intervals defined by the nodes in a clock-constrained phylogram to either   being the result of inter-specific (“diversification”) or intraspecific   (“coalescent”) processes of lineage branching (Fig. 2). A full description of   the model and its performance on simulated trees will be provided elsewhere   (Barraclough, unpublished).

线粒体DNA分支时间分析

建立了一个统计模型来检验物种边界处分枝速率的预期变化。该程序的总体目的是将观察到的分支时间间隔(由时钟约束的系统树图中的节点界定)分类为种间分支过程(“多样化”)或种内分支过程(“溯祖”)(图2)。模型及其在模拟树上的性能的完整描述将在其他地方提供(Barraclough,未发表)。

Pons J, Barraclough T G, Gomez-Zurita J, et   al. Sequence-based species delimitation for the DNA taxonomy of undescribed   insects[J]. Systematic biology, 2006, 55(4): 595-609.




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