Figure 1
From: Limitations and possibilities of low cell number ChIP-seq
Genomic mapping of sequence reads. The proportion of reads that were unmapped, those mapping to single genomic positions, and those mapping to multiple locations (repeats) are illustrated. The latter two categories are broken down into reads present as a unique copy, or those reads that are present in two or more identical copies (duplicates). The total number of reads generated for each experimental condition are given at the right.