Figure 1. A screenshot of an optical contig (OMcontig_31) showing a possible telomeric-end.

The Genspect viewer depicts each optical map, constructed from a genomic DNA molecule, as a horizontal track consisting of colored boxes. The length of each box represents the size (in kb) of a restriction fragment within a genomic molecule. The map information of the entire contig is combined into a single track (top; blue) called the consensus map. Restriction fragments are colored keyed for indicating their agreement with the consensus map; gold boxes show agreement, while red (false cut), blue (missing cut), and purple (false cut) indicate aforementioned restriction map differences. This deep contig shows a distinct edge, or end, populated by ∼40 optical maps indicating a telomeric region (Chr7).