Gap Track Settings
Gap Locations   (All Mapping and Sequencing tracks)

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Data schema/format description and download
Data last updated at UCSC: 2006-01-28


This track depicts gaps in the assembly. These gaps - with the exception of intractable heterochromatic gaps - will be closed during the finishing process.

Gaps are represented as black boxes in this track. If the relative order and orientation of the contigs on either side of the gap is known, it is a bridged gap and a white line is drawn through the black box representing the gap.

This assembly contains the following principal types of gaps:

  • Fragment - gaps between the contigs of a draft clone. (In this context, a contig is a set of overlapping sequence reads.) These are represented by varying numbers of Ns in the assembly.
  • Clone - gaps between bactigs. These are represented by 50,000 Ns in the assembly.