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Semblance

Assess a genome assembly by comparison to finished clones.

Package

  • category: assembly::quality control
  • operating system: OS independent (Perl)
  • license: GNU GPL
  • project administrator: Dave Messina
  • download: semblance

GSC Application: Bioinformatics

Semblance will compare a genome assembly to finished clones and produce an evaluation of the assembly in terms of a number of metrics, such as:

  • Discrepancies (substitutions, deletions, insertions)
  • Coverage (of the clone by the assembly)
  • Interruptions (of a supercontig by another supercontig)
There are three major phases to semblance: BLASTs of each finished clone against the assembly contigs, refining those alignments with cross_match, and then analyzing the alignments according to the various analysis metrics. See this presentation for more details.