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Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-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...
DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...

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Updated: Jun 5, 2026

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
14:06

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER

Published on: June 23, 2012

Microarray-based genome-wide association studies using pooled DNA.

Szabolcs Szelinger1, John V Pearson, David W Craig

  • 1Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA.

Methods in Molecular Biology (Clifton, N.J.)
|January 5, 2011
PubMed
Summary
This summary is machine-generated.

Pooling DNA samples enables rapid, cost-effective genome-wide association studies (GWAS). This approach simplifies genotyping by pooling hundreds of samples before analysis on SNP microarrays, offering an efficient alternative to individual sample interrogation.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Biostatistics

Background:

  • Genome-wide association studies (GWAS) are crucial for identifying genetic variants associated with diseases.
  • Interrogating thousands of individual DNA samples for SNP genotyping is time-consuming and expensive.

Purpose of the Study:

  • To present a universal method for pooling genomic DNA samples for high-density SNP genotyping.
  • To offer a rapid, efficient, and low-cost alternative for conducting GWAS.

Main Methods:

  • Pooling hundreds of genomic DNA samples within clinical disease classes.
  • Utilizing commercially available high-density SNP microarrays for genotyping pooled DNA.
  • Developing a general outline for pool construction applicable to various SNP genotyping platforms.

Main Results:

  • The described pooling strategy is universal and platform-independent.
  • This method significantly reduces the cost and time associated with large-scale SNP genotyping.
  • Success hinges on accurate allelic frequency calculations and managing assay variability.

Conclusions:

  • DNA pooling is a viable strategy for accelerating and reducing the cost of GWAS.
  • Careful attention to allelic frequency accuracy and assay variability is essential for reliable results.
  • Further investigation of neighboring SNPs can help resolve association signals.