title: Detection of differentially expressed segments in tiling array data.
abstract: BACKGROUND
  Tiling arrays have been a mainstay of unbiased genome-wide transcriptomics over the last decade. Currently available approaches to identify expressed or differentially expressed segments in tiling array data are limited in the recovery of the underlying gene structures and require several parameters that are intensity-related or partly dataset-specific.
  
  
  RESULTS
  We have developed TileShuffle, a statistical approach that identifies transcribed and differentially expressed segments as significant differences from the background distribution while considering sequence-specific affinity biases and cross-hybridization. It avoids dataset-specific parameters in order to provide better comparability of different tiling array datasets, based on different technologies or array designs. TileShuffle detects highly and differentially expressed segments in biological data with significantly lower false discovery rates under equal sensitivities than commonly used methods. Also, it is clearly superior in the recovery of exon-intron structures. It further provides window z-scores as a normalized and robust measure for visual inspection.
  
  
  BACKGROUND
  The R package including documentation and examples is freely available at http://www.bioinf.uni-leipzig.de/Software/TileShuffle/
authors.affiliation: Bioinformatics Group, Department of Computer Science and Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Otto
authors.forename: Kristin
authors.initials: K
authors.lastname: Reiche
authors.forename: Jörg
authors.initials: J
authors.lastname: Hackermüller
mesh_terms: D005091:Exons; D015894:Genome, Human; D055106:Genome-Wide Association Study; D006801:Humans; D007438:Introns; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D012984:Software; D059467:Transcriptome