On the testing of Hardy-Weinberg proportions and equality of allele frequencies in males and females at biallelic genetic markers
Standard statistical tests for equality of allele frequencies in males and females and tests for Hardy-Weinberg equilibrium are tightly linked by their assumptions. Tests for equality of allele frequencies assume Hardy-Weinberg equilibrium, whereas the usual chi-square or exact test for Hardy-Weinbe...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/111053 |
| Acesso em linha: | https://hdl.handle.net/2117/111053 https://dx.doi.org/10.1002/gepi.22079 |
| Access Level: | acceso abierto |
| Palavra-chave: | Genetic markers--Statistical methods Akaike's information criterion Exact test Inbreeding coefficient Likelihood ratio test Ternary diagram Estadística matemàtica Marcadors genètics -- Mètodes estadístics Àrees temàtiques de la UPC::Matemàtiques i estadística::Estadística aplicada |
| Resumo: | Standard statistical tests for equality of allele frequencies in males and females and tests for Hardy-Weinberg equilibrium are tightly linked by their assumptions. Tests for equality of allele frequencies assume Hardy-Weinberg equilibrium, whereas the usual chi-square or exact test for Hardy-Weinberg equilibrium assume equality of allele frequencies in the sexes. In this paper, we propose ways to break this interdependence in assumptions of the two tests by proposing an omnibus exact test that can test both hypotheses jointly, as well as a likelihood ratio approach that permits these phenomena to be tested both jointly and separately. The tests are illustrated with data from the 1000 Genomes project. |
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