Discovering genotypes underlying human phenotypes: past successes for mendelian disease, future approaches for complex disease

Nat Genet. 2003 Mar;33 Suppl:228-37. doi: 10.1038/ng1090.

Abstract

The past two decades have witnessed an explosion in the identification, largely by positional cloning, of genes associated with mendelian diseases. The roughly 1,200 genes that have been characterized have clarified our understanding of the molecular basis of human genetic disease. The principles derived from these successes should be applied now to strategies aimed at finding the considerably more elusive genes that underlie complex disease phenotypes. The distribution of types of mutation in mendelian disease genes argues for serious consideration of the early application of a genomic-scale sequence-based approach to association studies and against complete reliance on a positional cloning approach based on a map of anonymous single nucleotide polymorphism haplotypes.

Publication types

  • Historical Article
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Alleles
  • Chromosome Mapping
  • Cloning, Molecular
  • Genetic Diseases, Inborn / genetics*
  • Genetic Diseases, Inborn / history
  • Genomics / history
  • Genomics / trends
  • Genotype
  • History, 20th Century
  • History, 21st Century
  • Humans
  • Linkage Disequilibrium
  • Mutation
  • Phenotype
  • Polymorphism, Single Nucleotide