Artikel ; Online: Implications of the Co-Dominance Model for Hardy-Weinberg Testing in Genetic Association Studies.
2024
Abstract: Introduction: The standard way of using tests for compatibility of genetic markers with the Hardy-Weinberg equilibrium (HWE) assumptionvas a means of quality control in genetic association studies (GAS) is to vcarry out this step of preliminary data ... ...
Abstract | Introduction: The standard way of using tests for compatibility of genetic markers with the Hardy-Weinberg equilibrium (HWE) assumptionvas a means of quality control in genetic association studies (GAS) is to vcarry out this step of preliminary data analysis with the sample of non-diseased vindividuals only. We show that this strategy has no rational basis whenever the genotype--phenotype relation for avmarker under consideration satisfies the assumption of co-dominance. Methods/results: The justification of this statement is the fact rigorously shown here that under co-dominance, the genotype distribution of a diallelic marker is in HWE among the controls if and only if the same holds true for the cases. Conclusion: The major practical consequence of that theoretical result is that under the co-dominance model, testing for HWE should be done both for cases and controls aiming to establish the combined (intersection) hypothesis of compatibility of both underlying genotype distributions with the HWE assumption. A particularly useful procedure serving this purpose is obtained through applying the confidence-interval inclusion rule derived by Wellek, Goddard and Ziegler (Biom J. 2010; 52:253-270) to both samples separately and combining these two tests by means of the intersection-union principle. |
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Sprache | Englisch |
Erscheinungsdatum | 2024-03-02 |
Erscheinungsland | Switzerland |
Dokumenttyp | Journal Article |
ZDB-ID | 2424-7 |
ISSN | 1423-0062 ; 0001-5652 |
ISSN (online) | 1423-0062 |
ISSN | 0001-5652 |
DOI | 10.1159/000537832 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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