arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.3685q-bio.GN
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使用R和Bioconductor对RNA测序数据进行基于计数的差异表达分析

Count-based differential expression analysis of RNA sequencing data using R and Bioconductor

Simon Anders, Davis J. McCarthy, Yunshen Chen, Michal Okoniewski, Gordon K. Smyth, Wolfgang Huber, Mark D. Robinson

摘要:

RNA测序(RNA-seq)已迅速用于生物学许多领域的转录组分析,包括对基因调控、发育和疾病的研究。特别感兴趣的是发现在不同条件下差异表达的基因(例如,组织、扰动),同时可选地调整影响数据收集过程的其他系统因素。这些分析有许多微妙但关键的方面,例如读段计数、生物变异性的适当处理、质量控制检查和统计建模的适当设置。文献中提出了几种不同的做法,需要就目前的最佳做法提供指导。该方案提出了一种“最先进的”计算和统计RNA-seq差异表达分析工作流程,主要基于免费开源R语言和Bioconductor软件,特别是两种广泛使用的工具DESeq和edgeR。典型小型实验的动手时间(例如,4-10示例)可以小于1小时,使用标准台式PC计算时间小于1天。

英文摘要:

RNA sequencing (RNA-seq) has been rapidly adopted for the profiling of transcriptomes in many areas of biology, including studies into gene regulation, development and disease. Of particular interest is the discovery of differentially expressed genes across different conditions (e.g., tissues, perturbations), while optionally adjusting for other systematic factors that affect the data collection process. There are a number of subtle yet critical aspects of these analyses, such as read counting, appropriate treatment of biological variability, quality control checks and appropriate setup of statistical modeling. Several variations have been presented in the literature, and there is a need for guidance on current best practices. This protocol presents a "state-of-the-art" computational and statistical RNA-seq differential expression analysis workflow largely based on the free open-source R language and Bioconductor software and in particular, two widely-used tools DESeq and edgeR. Hands-on time for typical small experiments (e.g., 4-10 samples) can be <1 hour, with computation time <1 day using a standard desktop PC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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