Matching of array CGH and gene expression microarray features for the purpose of integrative genomic analyses.

BMC Bioinformatics
Wessel N van WieringenMark A van de Wiel

Abstract

An increasing number of genomic studies interrogating more than one molecular level is published. Bioinformatics follows biological practice, and recent years have seen a surge in methodology for the integrative analysis of genomic data. Often such analyses require knowledge of which elements of one platform link to those of another. Although important, many integrative analyses do not or insufficiently detail the matching of the platforms. We describe, illustrate and discuss six matching procedures. They are implemented in the R-package sigaR (available from Bioconductor). The principles underlying the presented matching procedures are generic, and can be combined to form new matching approaches or be applied to the matching of other platforms. Illustration of the matching procedures on a variety of data sets reveals how the procedures differ in the use of the available data, and may even lead to different results for individual genes. Matching of data from multiple genomics platforms is an important preprocessing step for many integrative bioinformatic analysis, for which we present six generic procedures, both old and new. They have been implemented in the R-package sigaR, available from Bioconductor.

References

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Citations

Jan 15, 2014·Radiation Oncology·Kristian Unger
Jan 24, 2014·Computational and Mathematical Methods in Medicine·Szilárd NemesKhalil Helou
Aug 24, 2018·Biometrical Journal. Biometrische Zeitschrift·Viktorian MiokWessel N van Wieringen

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Datasets Mentioned

BETA
GSE21034
GSE21036
GPL8227
GPL5188

Software Mentioned

Bioconductor
overlapAny
overlapPlus
package
hgu133plus2
Ensembl
R
ACEit
CGHbase
sigaR

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