Improving RNA-Seq expression estimates by correcting for fragment bias.

Improving RNA-Seq expression estimates by correcting for fragment bias.
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DOI:
10.1186/gb-2011-12-3-r22
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发表时间:
2011
期刊:
影响因子:
12.3
通讯作者:
Pachter L
Pachter L
中科院分区:
生物学1区
文献类型:
--
作者:
Roberts A;Trapnell C;Donaghey J;Rinn JL;Pachter L

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The biochemistry of RNA-Seq library preparation results in cDNA fragments that are not uniformly distributed within the transcripts they represent. This non-uniformity must be accounted for when estimating expression levels, and we show how to perform the needed corrections using a likelihood based approach. We find improvements in expression estimates as measured by correlation with independently performed qRT-PCR and show that correction of bias leads to improved replicability of results across libraries and sequencing technologies.
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