FFBSKAT: fast family-based sequence kernel association test.

The kernel machine-based regression is an efficient approach to region-based association analysis aimed at identification of rare genetic variants. However, this method is computationally complex. The running time of kernel-based association analysis becomes especially long for samples with genetic...

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Main Authors: Gulnara R Svishcheva, Nadezhda M Belonogova, Tatiana I Axenovich
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4048315?pdf=render
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author Gulnara R Svishcheva
Nadezhda M Belonogova
Tatiana I Axenovich
author_facet Gulnara R Svishcheva
Nadezhda M Belonogova
Tatiana I Axenovich
author_sort Gulnara R Svishcheva
collection DOAJ
description The kernel machine-based regression is an efficient approach to region-based association analysis aimed at identification of rare genetic variants. However, this method is computationally complex. The running time of kernel-based association analysis becomes especially long for samples with genetic (sub) structures, thus increasing the need to develop new and effective methods, algorithms, and software packages. We have developed a new R-package called fast family-based sequence kernel association test (FFBSKAT) for analysis of quantitative traits in samples of related individuals. This software implements a score-based variance component test to assess the association of a given set of single nucleotide polymorphisms with a continuous phenotype. We compared the performance of our software with that of two existing software for family-based sequence kernel association testing, namely, ASKAT and famSKAT, using the Genetic Analysis Workshop 17 family sample. Results demonstrate that FFBSKAT is several times faster than other available programs. In addition, the calculations of the three-compared software were similarly accurate. With respect to the available analysis modes, we combined the advantages of both ASKAT and famSKAT and added new options to empower FFBSKAT users. The FFBSKAT package is fast, user-friendly, and provides an easy-to-use method to perform whole-exome kernel machine-based regression association analysis of quantitative traits in samples of related individuals. The FFBSKAT package, along with its manual, is available for free download at http://mga.bionet.nsc.ru/soft/FFBSKAT/.
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spelling doaj.art-9941e99aa75d49129689d55ecc90488c2022-12-22T00:49:34ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0196e9940710.1371/journal.pone.0099407FFBSKAT: fast family-based sequence kernel association test.Gulnara R SvishchevaNadezhda M BelonogovaTatiana I AxenovichThe kernel machine-based regression is an efficient approach to region-based association analysis aimed at identification of rare genetic variants. However, this method is computationally complex. The running time of kernel-based association analysis becomes especially long for samples with genetic (sub) structures, thus increasing the need to develop new and effective methods, algorithms, and software packages. We have developed a new R-package called fast family-based sequence kernel association test (FFBSKAT) for analysis of quantitative traits in samples of related individuals. This software implements a score-based variance component test to assess the association of a given set of single nucleotide polymorphisms with a continuous phenotype. We compared the performance of our software with that of two existing software for family-based sequence kernel association testing, namely, ASKAT and famSKAT, using the Genetic Analysis Workshop 17 family sample. Results demonstrate that FFBSKAT is several times faster than other available programs. In addition, the calculations of the three-compared software were similarly accurate. With respect to the available analysis modes, we combined the advantages of both ASKAT and famSKAT and added new options to empower FFBSKAT users. The FFBSKAT package is fast, user-friendly, and provides an easy-to-use method to perform whole-exome kernel machine-based regression association analysis of quantitative traits in samples of related individuals. The FFBSKAT package, along with its manual, is available for free download at http://mga.bionet.nsc.ru/soft/FFBSKAT/.http://europepmc.org/articles/PMC4048315?pdf=render
spellingShingle Gulnara R Svishcheva
Nadezhda M Belonogova
Tatiana I Axenovich
FFBSKAT: fast family-based sequence kernel association test.
PLoS ONE
title FFBSKAT: fast family-based sequence kernel association test.
title_full FFBSKAT: fast family-based sequence kernel association test.
title_fullStr FFBSKAT: fast family-based sequence kernel association test.
title_full_unstemmed FFBSKAT: fast family-based sequence kernel association test.
title_short FFBSKAT: fast family-based sequence kernel association test.
title_sort ffbskat fast family based sequence kernel association test
url http://europepmc.org/articles/PMC4048315?pdf=render
work_keys_str_mv AT gulnararsvishcheva ffbskatfastfamilybasedsequencekernelassociationtest
AT nadezhdambelonogova ffbskatfastfamilybasedsequencekernelassociationtest
AT tatianaiaxenovich ffbskatfastfamilybasedsequencekernelassociationtest