Tensor decomposition for multiple-tissue gene expression experiments.
Tensor decomposition for multiple-tissue gene expression experiments.
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DOI:
10.1038/ng.3624
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发表时间:
2016-09
期刊:
影响因子:
30.8
通讯作者:
Marchini, Jonathan
中科院分区:
文献类型:
--
作者:
Hore, Victoria;Vinuela, Ana;Buil, Alfonso;Knight, Julian;McCarthy, Mark I.;Small, Kerrin;Marchini, Jonathan
Genome wide association studies of gene expression traits and other cellular phenotypes have been successful in revealing links between genetic variation and biological processes. The majority of discoveries have uncovered cis eQTL effects via mass univariate testing of SNPs against gene expression in single tissues. We present a Bayesian method for multi-tissue experiments focusing on uncovering gene networks linked to genetic variation. Our method decomposes the 3D array (or tensor) of gene expression measurements into a set of latent components. We identify sparse gene networks, which can then be tested for association against genetic variation genome-wide. We apply our method to a dataset of 845 individuals from the TwinsUK cohort with gene expression measured via RNA sequencing in adipose, LCLs and skin. We uncover several gene networks with a genetic basis and clear biological and statistical significance. Extensions of this approach will allow integration of multi-omic, environmental and phenotypic datasets.
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影响因子:
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Pai AA;Pritchard JK;Gilad Y
通讯作者:
Gilad Y
DOI:
10.1126/science.1260793
发表时间:
2015-02-06
期刊:
Science (New York, N.Y.)
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通讯作者:
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