Title |
Correcting for Population Stratification Reduces False Positive and False Negative Results in Joint Analyses of Host and Pathogen Genomes
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Published in |
Frontiers in Genetics, July 2018
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DOI | 10.3389/fgene.2018.00266 |
Pubmed ID | |
Authors |
Olivier Naret, Nimisha Chaturvedi, Istvan Bartha, Christian Hammer, Jacques Fellay, The Swiss HIV Cohort Study |
Abstract |
Studies of host genetic determinants of pathogen sequence variations can identify sites of genomic conflicts, by highlighting variants that are implicated in immune response on the host side and adaptive escape on the pathogen side. However, systematic genetic differences in host and pathogen populations can lead to inflated type I (false positive) and type II (false negative) error rates in genome-wide association analyses. Here, we demonstrate through a simulation that correcting for both host and pathogen stratification reduces spurious signals and increases power to detect real associations in a variety of tested scenarios. We confirm the validity of the simulations by showing comparable results in an analysis of paired human and HIV genomes. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 5 | 38% |
United States | 2 | 15% |
France | 1 | 8% |
Unknown | 5 | 38% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 7 | 54% |
Members of the public | 6 | 46% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 22 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 5 | 23% |
Researcher | 4 | 18% |
Student > Master | 2 | 9% |
Professor | 1 | 5% |
Student > Doctoral Student | 1 | 5% |
Other | 2 | 9% |
Unknown | 7 | 32% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 6 | 27% |
Biochemistry, Genetics and Molecular Biology | 4 | 18% |
Engineering | 2 | 9% |
Medicine and Dentistry | 2 | 9% |
Psychology | 1 | 5% |
Other | 0 | 0% |
Unknown | 7 | 32% |