Figure 4
From: Genomic sequence of a mutant strain of Caenorhabditis elegans with an altered recombination pattern
Insertions of DNA can result in paired end tags (PETs) shorter than expected. PETs that fall outside the normal size range can be an indication of DNA insertions. Top: In the case of a small insertion, paired end reads can cover a region in the alignment to the reference (Ref) that does not include the inserted sequence in the sample. Lower Right: Insertions in the sample are characterized by multiple PETs with a shorter than average fragment size based on the alignment.