A track is a very fundamental building block for NGS analysis in the CLC Genomics Workbench. The idea behind tracks is to provide a unified framework for the visualization, comparison and analysis of genome-scale studies such as whole-genome sequencing or exome resequencing projects and a variety of different -Seq data (i.e. ChIP-Seq, DNAse-Seq).24.1

In tracks, all information is tied to genomic positions - so a reference genome provides a central coordinate-system such that different datasets can be seen and analysed together. Different kinds of tracks exist: a reference genome sequence (Image sequence_track), a set of genes (Image annotation_track), a coverage graph (Image graph_track), a read mapping (Image readtrack) or variants from variant calling (Image variation_track). This chapter explains how to visualize tracks, how to retrieve reference data and finally how to perform generic comparisons between tracks. For comparison tools specific to resequencing and variants, please see Resequencing.


... DNAse-Seq).24.1
The track concept was first introduced with the Genomics Gateway plug-in in 2011 and made an integral part of the CLC Genomics Workbench 5.5 release.