Single nucleotide polymorphisms and the future of genetic epidemiology
Article first published online: 24 DEC 2001
Volume 58, Issue 4, pages 250–264, October 2000
How to Cite
Schork, N. J., Fallin, D. and Lanchbury, J. S. (2000), Single nucleotide polymorphisms and the future of genetic epidemiology. Clinical Genetics, 58: 250–264. doi: 10.1034/j.1399-0004.2000.580402.x
- Issue published online: 24 DEC 2001
- Article first published online: 24 DEC 2001
- Received 14 June 2000Accepted 17 July 2000
- genetic epidemiology;
In this review, we consider the motivation behind contemporary Single Nucleotide Polymorphism (SNP) initiatives. Many of these initiatives are projected to involve large, population-based surveys. We therefore emphasize the utility of SNPs for genetic epidemiology studies. We start by offering an overview of genetic polymorphism and discuss the historical use of polymorphism in the identification of disease-predisposing genes via meiotic mapping. We next consider some of the unique aspects of SNPs, and their relative advantages and disadvantages in human population-based analyses. In this context, we describe and critique the following six different areas of application for SNP technologies:
- • Gene discovery and mapping.
- • Association-based candidate polymorphism testing.
- • Diagnostics and risk profiling.
- • Prediction of response to environmental stimuli, xenobiotics and diet.
- • Homogeneity testing and epidemiological study design.
- • Physiologic genomics.
We focus on key issues within each of these areas in an effort to point out potential problems that might plague the use of SNPs (or other forms of polymorphism) within them. However, we make no claim that our list of considerations are exhaustive. Rather, we believe that they may provide a starting point for further dialog about the ultimate utility of SNP technologies. In addition, although our emphasis is placed on applications of SNPs to the understanding of human phenotypes, we acknowledge that SNP maps and technologies applied to other species (e.g. the mouse genome, pathogen genomes, plant genomes, etc.) are also of tremendous interest.