基于48个生物学重复实验的RNA-seq差异基因表达分析工具评估
基因组学
2016-03-30 v2
摘要
在每种2种条件下各进行48个生物学重复的RNA-seq实验,以确定所需的生物学重复数(),并找出识别差异基因表达(DGE)最有效的统计分析工具。当 时,所评估的九种工具中有七种的真阳性率(TPR)仅达20%至40%。对于高倍数变化基因(),TPR大于85%。有两种工具表现不佳,过高或过低预测差异表达基因的数量。增加重复数在考虑所有差异表达基因时使TPR大幅提升,但对于高倍数变化基因仅小幅提升。要在所有倍数变化上达到TPR >85% 需要 。对于未来的RNA-seq实验,这些结果建议 ,当不论倍数变化识别DGE很重要时应增至 。对于 ,更优的TPR使 edgeR 成为被测工具中的领先者。对于 ,最小化假阳性更为重要,且 DESeq 优于其他工具。
引用
@article{arxiv.1505.02017,
title = {Evaluation of tools for differential gene expression analysis by RNA-seq on a 48 biological replicate experiment},
author = {Nicholas J. Schurch and Pieta Schofield and Marek Gierliński and Christian Cole and Alexander Sherstnev and Vijender Singh and Nicola Wrobel and Karim Gharbi and Gordon G. Simpson and Tom Owen-Hughes and Mark Blaxter and Geoffrey J. Barton},
journal= {arXiv preprint arXiv:1505.02017},
year = {2016}
}
备注
21 Pages and 4 Figures in main text. 9 Figures in Supplement attached to PDF. Revision to correct a minor error in the abstract