Detecting genomic clustering of risk variants from sequence data: cases versus controls.
Detecting genomic clustering of risk variants from sequence data: cases versus controls.
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DOI:
10.1007/s00439-013-1335-y
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发表时间:
2013-11
期刊:
影响因子:
5.3
通讯作者:
Thibodeau, Stephen N.
中科院分区:
文献类型:
--
作者:
Schaid, Daniel J.;Sinnwell, Jason P.;McDonnell, Shannon K.;Thibodeau, Stephen N.
As the ability to measure dense genetic markers approaches the limit of the DNA sequence itself, taking advantage of possible clustering of genetic variants in, and around, a gene would benefit genetic association analyses, and likely provide biological insights. The greatest benefit might be realized when multiple rare variants cluster in a functional region. Several statistical tests have been developed, one of which is based on the popular Kulldorff scan statistic for spatial clustering of disease. We extended another popular spatial clustering method – Tango’s statistic – to genomic sequence data. An advantage of Tango’s method is that it is rapid to compute, and when single test statistic is computed, its distribution is well approximated by a scaled chi-square distribution, making computation of p-values very rapid. We compared the Type-I error rates and power of several clustering statistics, as well as the omnibus sequence kernel association test (SKAT). Although our version of Tango’s statistic, which we call “Kernel Distance” statistic, took approximately half the time to compute than the Kulldorff scan statistic, it had slightly less power than the scan statistic. Our results showed that the Ionita-Laza version of Kulldorff’s scan statistic had the greatest power over a range of clustering scenarios.
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影响因子:
0.8
作者:
Kulldorff, M
通讯作者:
Kulldorff, M
DOI:
10.1093/bioinformatics/bts568
发表时间:
2012-12-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Fier H;Won S;Prokopenko D;AlChawa T;Ludwig KU;Fimmers R;Silverman EK;Pagano M;Mangold E;Lange C
通讯作者:
Lange C
DOI:
10.1038/nrg2867
发表时间:
2010-11
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
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影响因子:
2.1
作者:
Basu, Saonli;Pan, Wei
通讯作者:
Pan, Wei
影响因子:
2.1
作者:
Lee, Seunggeun;Wu, Michael C.;Lin, Xihong
通讯作者:
Lin, Xihong