Genetica

, Volume 122, Issue 3, pp 245–252 | Cite as

Variation in recombination rate may bias human genetic disease mapping studies

  • A. Susannah boyle
  • Mohamed A.F. Noor
Article

Abstract

The availability of the human genome sequence and variability information (as from the International HapMap project) will enhance our ability to map genetic disorders and choose targets for therapeutic intervention. However, several factors, such as regional variation in recombination rate, can bias conclusions from genetic mapping studies. Here, we examine the impact of regional variation in recombination rate across the human genome. Through computer simulations and literature surveys, we conclude that genetic disorders have been mapped to regions of low recombination more often than expected if such diseases were randomly distributed across the genome. This concentration in low recombination regions may be an artifact, and disorders appearing to be caused by a few genes of large effect may be polygenic. Future genetic mapping studies should be conscious of this potential complication by noting the regional recombination rate of regions implicated in diseases.

gene density pedigree QTL recombination rate 
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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • A. Susannah boyle
    • 1
  • Mohamed A.F. Noor
    • 1
  1. 1.Department of Biological SciencesLouisiana State UniversityUSA

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