Evaluating empirical bounds on complex disease genetic architecture.
Evaluating empirical bounds on complex disease genetic architecture.
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DOI:
10.1038/ng.2804
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发表时间:
2013-12
期刊:
影响因子:
30.8
通讯作者:
Altshuler, David
中科院分区:
文献类型:
--
作者:
Agarwala, Vineeta;Flannick, Jason;Sunyaev, Shamil;Altshuler, David
The genetic architecture of human diseases governs the success of genetic mapping and the future of personalized medicine. Although numerous studies have queried the genetic basis of common disease, contradictory hypotheses have been advocated about features of genetic architecture (e.g., the contribution of rare vs. common variants). We developed an integrated simulation framework, calibrated to empirical data, to enable systematic evaluation of such hypotheses. For type 2 diabetes (T2D), two simple parameters – (a) the target size for causal mutation and (b) the coupling between selection and phenotypic effect – define a broad space of architectures. While extreme models are excluded, many models remain consistent with epidemiology, linkage, and genome-wide association studies for T2D, including those where rare variants explain little (<25%) or most (>80%) of heritability. Ongoing sequencing and genotyping studies will further constrain architecture, but very large samples (e.g., >250K unselected individuals) will be required to localize most of the heritability underlying traits like T2D.
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DOI:
10.1073/pnas.0906182107
发表时间:
2010-01-26
影响因子:
11.1
作者:
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通讯作者:
Eyre-Walker, Adam
影响因子:
30.8
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DOI:
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发表时间:
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影响因子:
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作者:
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通讯作者:
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30.8
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