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shinyTempSignal:an R shiny application for exploring temporal and other phylogenetic signals

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摘要 The molecular clock model is fundamental for inferring species divergence times from molecular sequences.However,its direct application may introduce significant biases due to sequencing errors,recombination events,and inaccurately labeled sampling times.Improving accuracy necessitates rigorous quality control measures to identify and remove potentially erroneous sequences.Furthermore,while not all branches of a phylogenetic tree may exhibit a clear temporal signal,specific branches may still adhere to the assumptions,with varying evolutionary rates.Supporting a relaxed molecular clock model better aligns with the complexities of evolution.The root-to-tip regression method has been widely used to analyze the temporal signal in phylogenetic studies and can be generalized for detecting other phylogenetic signals.Despite its utility,there remains a lack of corresponding software implementations for broader applications.To address this gap,we present shinyTempSignal,an interactive web application implemented with the shiny framework,available as an R package and publicly accessible at https://github.com/YuLab-SMU/shinyTempSignal.This tool facilitates the analysis of temporal and other phylogenetic signals under both strict and relaxed models.By extending the root-to-tip regression method to diverse signals,shinyTempSignal helps in the detection of evolving features or traits,thereby laying the foundation for deeper insights and subsequent analyses.
出处 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2024年第7期762-768,共7页 遗传学报(英文版)
基金 supported by the National Natural Science Foundation of China(32270677).
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