期刊
BIOINFORMATICS
卷 29, 期 21, 页码 2744-2749出版社
OXFORD UNIV PRESS
DOI: 10.1093/bioinformatics/btt477
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资金
- National Institutes of Health [R01HG006292, R01HG006703]
Although the 1000 Genomes haplotypes are the most commonly used reference panel for imputation, medical sequencing projects are generating large alternate sets of sequenced samples. Imputation in African Americans using 3384 haplotypes from the Exome Sequencing Project, compared with 2184 haplotypes from 1000 Genomes Project, increased effective sample size by 8.3-11.4% for coding variants with minor allele frequency 51%. No loss of imputation quality was observed using a panel built from phenotypic extremes. We recommend using haplotypes from Exome Sequencing Project alone or concatenation of the two panels over quality score-based post-imputation selection or IMPUTE2' s two-panel combination.
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