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Related Experiment Video

Updated: Feb 22, 2026

Infinium Assay for Large-scale SNP Genotyping Applications

Infinium Assay for Large-scale SNP Genotyping Applications

Published on: November 19, 2013

Graphtyper enables population-scale genotyping using pangenome graphs.

Hannes P Eggertsson^1,2, Hakon Jonsson¹, Snaedis Kristmundsdottir^1,3

¹deCODE Genetics/Amgen, Inc., Reykjavik, Iceland.

Nature Genetics

|September 26, 2017

Summary

This summary is machine-generated.

Graphtyper is a new algorithm for accurately identifying genetic variations in DNA sequences. This tool efficiently analyzes large datasets, improving sequence analysis for genetic studies.

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Area of Science:

Genomics
Bioinformatics
Computational Biology

Background:

Accurate determination of sequence variation is crucial for genetic studies.
Human genome sequence diversity is well-characterized, but efficient analysis tools are needed.
Existing methods may lack efficiency and scalability for large-scale population studies.

Purpose of the Study:

To introduce Graphtyper, a novel algorithm and software for discovering and genotyping sequence variants.
To provide an efficient and scalable tool for analyzing sequence data.
To demonstrate the utility of Graphtyper in both small-scale and population-scale sequencing projects.

Main Methods:

Developed Graphtyper, a publicly available algorithm and software.
Utilized a pangenome, a variation-aware graph structure, for sequence realignment.
Encoded population sequence variation as graph paths representing haplotypes.

Main Results:

Graphtyper demonstrated high speed, scalability, and accuracy in genotype calls.
Successfully genotyped 89.4 million sequence variants in 28,075 Icelandic whole genomes.
Included detailed genotyping of six human leukocyte antigen (HLA) genes.

Conclusions:

Graphtyper is a fast, scalable, and accurate tool for sequence variant discovery and genotyping.
The algorithm is effective for analyzing large population-scale sequencing data.
Graphtyper is a valuable resource for characterizing sequence variation in diverse genetic studies.