期刊
NATURE GENETICS
卷 50, 期 5, 页码 737-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41588-018-0108-x
关键词
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资金
- NIH [R01MH100141, R01DA037904, R01HG008983]
- NHMRC [1078037, 1113400]
- Sylvia & Charles Viertel Charitable Foundation Senior Medical Research Fellowship
- National Science Foundation [CNS-0821794]
- University of Colorado Boulder
- University of Colorado Denver
- National Center for Atmospheric Research
- National Health and Medical Research Council of Australia [1078037, 1113400] Funding Source: NHMRC
Multiple methods have been developed to estimate narrow-sense heritability, h(2), using single nucleotide polymorphisms (SNPs) in unrelated individuals. However, a comprehensive evaluation of these methods has not yet been performed, leading to confusion and discrepancy in the literature. We present the most thorough and realistic comparison of these methods to date. We used thousands of real whole-genome sequences to simulate phenotypes under varying genetic architectures and confounding variables, and we used array, imputed, or whole genome sequence SNPs to obtain 'SNP- heritability' estimates. We show that SNP-heritability can be highly sensitive to assumptions about the frequencies, effect sizes, and levels of linkage disequilibrium of underlying causal variants, but that methods that bin SNPs according to minor allele frequency and linkage disequilibrium are less sensitive to these assumptions across a wide range of genetic architectures and possible confounding factors. These findings provide guidance for best practices and proper interpretation of published estimates.
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