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FastGT: an alignment-free method for calling common SNVs directly from raw sequencing reads.


ABSTRACT: We have developed a computational method that counts the frequencies of unique k-mers in FASTQ-formatted genome data and uses this information to infer the genotypes of known variants. FastGT can detect the variants in a 30x genome in less than 1?hour using ordinary low-cost server hardware. The overall concordance with the genotypes of two Illumina "Platinum" genomes is 99.96%, and the concordance with the genotypes of the Illumina HumanOmniExpress is 99.82%. Our method provides k-mer database that can be used for the simultaneous genotyping of approximately 30 million single nucleotide variants (SNVs), including >23,000 SNVs from Y chromosome. The source code of FastGT software is available at GitHub (https://github.com/bioinfo-ut/GenomeTester4/).

SUBMITTER: Pajuste FD 

PROVIDER: S-EPMC5451431 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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FastGT: an alignment-free method for calling common SNVs directly from raw sequencing reads.

Pajuste Fanny-Dhelia FD   Kaplinski Lauris L   Möls Märt M   Puurand Tarmo T   Lepamets Maarja M   Remm Maido M  

Scientific reports 20170531 1


We have developed a computational method that counts the frequencies of unique k-mers in FASTQ-formatted genome data and uses this information to infer the genotypes of known variants. FastGT can detect the variants in a 30x genome in less than 1 hour using ordinary low-cost server hardware. The overall concordance with the genotypes of two Illumina "Platinum" genomes is 99.96%, and the concordance with the genotypes of the Illumina HumanOmniExpress is 99.82%. Our method provides k-mer database  ...[more]

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