Many two-colour hybridizations suffer from a dye bias that is both gene-specific and slide-specific. The former depends on the content of the nucleotide used for labeling; the latter depends on the labeling percentage. The slide-dependency was hitherto not recognized, and made addressing the artefact impossible. Given a reasonable number of dye-swapped pairs of hybridizations, or of same vs. same hybridizations, both the gene- and slide-biases can be estimated and corrected using the GASSCO method (Margaritis et al., Mol. Sys. Biol. 5:266 (2009), doi:10.1038/msb.2009.21)
Package details |
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Author | Philip Lijnzaad and Thanasis Margaritis |
Bioconductor views | Microarray Preprocessing QualityControl TwoChannel |
Maintainer | Philip Lijnzaad <plijnzaad@gmail.com> |
License | GPL-3 |
Version | 1.50.0 |
URL | http://www.holstegelab.nl/publications/margaritis_lijnzaad |
Package repository | View on Bioconductor |
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