Related Experiment Video
Updated: Aug 8, 2026
10:17
An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
Published on: November 3, 2010
Evaluating associations of haplotypes with traits
1Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA. schaid@mayo.edu
Genetic Epidemiology
|November 16, 2004
Summary
Haplotype analysis, using regression models, offers advantages for studying complex human traits and genetic associations. Further research integrating population genetics can enhance these powerful methods.
Area of Science:
- Genetics
- Statistical genetics
- Human genomics
Background:
- Haplotypes are crucial for studying single-gene disorders.
- Recombination patterns suggest haplotypes are key for complex traits.
- Haplotype-based methods offer statistical power and fine-mapping capabilities.
Purpose of the Study:
- Review the rationale for using haplotypes in human trait genetics.
- Synthesize current regression models for haplotype analysis.
- Identify limitations and future research directions.
Main Methods:
- Review of existing literature on haplotype-based methods.
- Discussion of regression models for haplotype analysis.
- Evaluation of advantages and limitations of current regression approaches.
Main Results:
- Regression models offer advantages like covariate control and interaction analysis.
- Haplotype analysis can identify key genetic markers for traits.
- Current methods lack sophisticated population genetic perspectives.
Conclusions:
- Regression models are valuable tools for genetic association studies of complex traits.
- Integrating population genetic models with regression methods is a promising future direction.
- Haplotype analysis holds significant potential for understanding the genetic basis of human traits.
Related Concept Videos
01:49Multiple Allele Traits
The Concept of Multiple Allelism
01:18Polygenic Traits
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
01:49Multiple Allele Traits
The Concept of Multiple Allelism
01:18Polygenic Traits
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
01:11Genome-wide Association Studies-GWAS
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
01:06Heritability
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic" a trait is,...