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Printable Handouts
Navigable Slide Index
- Introduction
- Statistical modelling of population admixture
- Genetic and environmental explanations
- Ethnic differences in disease risk
- Type 2 diabetes: variation in prevalence
- Type 2 diabetes: prevalence in Asian migrants
- Type 2 diabetes: effect of gene flow
- Relation of SLE risk to individual admixture
- Finding genes that influence complex traits
- Exploiting admixture to map genes
- Statistical power of admixture mapping
- Advantages of admixture mapping
- Admixture between low and high-risk populations
- Diseases amenable to admixture mapping (1)
- Diseases amenable to admixture mapping (2)
- An experimental cross between inbred strains
- Problems of extending linkage analysis
- Methods allowing linkage analysis extension
- Model for stochastic variation of ancestry
- Multipoint inference of ancestry at marker loci
- Null hypothesis as graphical model
- Statistical approach to model fitting
- Statistical approaches to hypothesis testing
- The score test algorithm
- Advantages of the score test algorithm
- Other model diagnostics: "Bayesian p-values"
- Ancestry information conveyed by diallelic marker
- How many markers are required?
- Panels of ancestry-informative markers
- Recent successes with admixture mapping
- Do these studies require a control group?
- Fine mapping in admixed populations
- Other applications of admixture modelling
Topics Covered
- Applications of statistical modelling of population admixture
- Genetic and environmental explanations for ethnic differences in disease risk
- Methods for finding genes that influence complex traits
- Exploiting admixture to map genes
- Statistical power of admixture mapping
- Advantages of admixture mapping in comparison with other approaches to finding disease susceptibility genes
- Methodological problems of extending linkage analysis of a cross to admixed human populations
- Statistical methods that allow linkage analysis of a cross to be extended to admixed humans
- Model for stochastic variation of ancestry on chromosomes inherited from an admixed parent
- Multipoint inference of ancestry at marker loci from genotypes
- Null hypothesis as graphical model
- Statistical approach to model fitting and hypothesis testing
- The score test algorithm
- Other model diagnostics: "Bayesian p-values"
- How many markers are required for genome-wide admixture mapping?
- Panels of ancestry-informative markers
- Other applications of statistical modelling of admixture
Talk Citation
McKeigue, P. (2007, October 1). Admixture mapping [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 26, 2024, from https://doi.org/10.69645/AYOV6454.Export Citation (RIS)
Publication History
Financial Disclosures
- Dr. Paul McKeigue has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.