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A tool for analysis and visualization of Single Nucleotide Polymorphism (SNP) relatedness between two individuals. The SNPduo algorithm uses identity by a state to identify relatedness. The web implementation generates UCSC UCSC Genome Browser viewable tracks SNPduo.


DNA polymorphism; Genetics; Genetic variation


  • Operation: SNP detection
  • Software interface: Web user interface; command-line user interface
  • Language: C++
  • Operating system: Linux; Mac OS X; Microsoft Windows
  • License: Other
  • Cost: Free
  • Version name: 2.0.0a
  • Maturity: Mature
  • Credit: The National Institutes of Health (NIH)
  • Contact: pevsner _at_
  • Collection: -


Roberson ED, Pevsner J "Visualization of shared genomic regions and meiotic recombination in high-density SNP data." PLoS One. 2009 Aug 21;4(8):e6711.
PMID: 19696932
PMCID: PMC2725774

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