variancePartition: interpreting drivers of variation in complex gene expression studies.
variancePartition: interpreting drivers of variation in complex gene expression studies.
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DOI:
10.1186/s12859-016-1323-z
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发表时间:
2016-11-25
影响因子:
3
通讯作者:
Schadt EE
中科院分区:
文献类型:
--
作者:
Hoffman GE;Schadt EE
As large-scale studies of gene expression with multiple sources of biological and technical variation become widely adopted, characterizing these drivers of variation becomes essential to understanding disease biology and regulatory genetics. We describe a statistical and visualization framework, variancePartition, to prioritize drivers of variation based on a genome-wide summary, and identify genes that deviate from the genome-wide trend. Using a linear mixed model, variancePartition quantifies variation in each expression trait attributable to differences in disease status, sex, cell or tissue type, ancestry, genetic background, experimental stimulus, or technical variables. Analysis of four large-scale transcriptome profiling datasets illustrates that variancePartition recovers striking patterns of biological and technical variation that are reproducible across multiple datasets. Our open source software, variancePartition, enables rapid interpretation of complex gene expression studies as well as other high-throughput genomics assays. variancePartition is available from Bioconductor: http://bioconductor.org/packages/variancePartition. The online version of this article (doi:10.1186/s12859-016-1323-z) contains supplementary material, which is available to authorized users.
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DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
46.9
作者:
Patro, Rob;Mount, Stephen M.;Kingsford, Carl
通讯作者:
Kingsford, Carl
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
10
作者:
Nakagawa, Shinichi;Schielzeth, Holger
通讯作者:
Schielzeth, Holger
DOI:
10.1073/pnas.97.18.10101
发表时间:
2000-08-29
影响因子:
11.1
作者:
Alter, O;Brown, PO;Botstein, D
通讯作者:
Botstein, D