Welcome to the SNPtrio website. Single nucleotide polymorphism (SNP) data can provide information about genotypes and chromosomal copy number. SNPtrio offers an additional category of information by visualizing and analyzing inheritance patterns in trios (mother, father, and child).

Introduction What SNPtrio does to analyze and visualize SNP data from trios



SNPtrio is a web-based tool that allows visualization of uniparental inheritance segments (uniparental disomy, hemizygous or homozygous deletion, loss of transmitted allele, non-paternity, etc.), based on single nucleotide polymorphism (SNP) genotype calls of father-mother-child trios.

SNPtrio produces a plot of "informative" SNPs, as defined in the Heredity Table schema, at the size you specify, one track per trio. The dots on the plot are color-coded according to the schema listed in the Heredity Table. SNPtrio also provides information about informative SNPs in a text format, as well as the likelihood for each block found.

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Please send questions or comments to pevsner@kennedykrieger.org.

Last updated: November 10, 2008.