Chapter title |
Using RNA-Seq to Discover Genetic Polymorphisms That Produce Hidden Splice Variants
|
---|---|
Chapter number | 10 |
Book title |
mRNA Processing
|
Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-7204-3_10 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7203-6, 978-1-4939-7204-3
|
Authors |
Shayna Stein, Emad Bahrami-Samani, Yi Xing |
Abstract |
RNA-seq is a powerful and popular technology for studying posttranscriptional regulation of gene expression, such as alternative splicing. The first step in analyzing RNA-seq data is to map the sequenced reads back to the genome. However, commonly used RNA-seq aligners use the consensus splice site dinucleotide motifs to map reads across splice junctions. This can be deceiving due to genomic variants that create novel splice site dinucleotides, leaving the personal splice junction reads un-mapped to the reference genome. We developed and evaluated a method called RNA Personal Genome Alignment Analyzer (rPGA) to identify "hidden" splicing variations in personal transcriptomes, by mapping personal RNA-seq data to personal genomes. Our work demonstrates that the personal genome approach to RNA-seq read alignment enables the discovery of a large but previously unknown catalog of splicing variations in human populations. |
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