Abstract
The availability of high-throughput genotyping technologies and microarray assays has enabled investigation of genetic variations that influence levels of gene expression. Expression Quantitative Trait Loci (eQTL) mapping methods have been successfully used to identify the genetic basis of gene expression which in turn led to identification of candidate genes and construction of regulatory networks. One challenging statistical aspect of eQTL mapping is the existence of thousands of traits. We have recently proposed a multivariate sparse partial least squares framework for mapping multiple quantitative traits and identifying genetic variations that affect the expression of a group of genes. In this book chapter, we provide a comprehensive illustration of this methodology with a Saccharomyces cerevisiae linkage study. Data from this study involves segregants from a cross between two Saccharomyces cerevisiae strains. Our application focuses on elucidating genomic markers that affect expression of functional yeast gene classes. We illustrate identification of eQTL regions affecting whole functional classes of genes as well as eQTL regions influencing individual genes.
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This research was supported by NSF grant DMS 0804597 to SK.
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Chung, D., Keleş, S. (2011). eQTL Mapping for Functional Classes of Saccharomyces cerevisiae Genes with Multivariate Sparse Partial Least Squares Regression. In: Lu, HS., Schölkopf, B., Zhao, H. (eds) Handbook of Statistical Bioinformatics. Springer Handbooks of Computational Statistics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16345-6_13
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DOI: https://doi.org/10.1007/978-3-642-16345-6_13
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