Cited by 69Genetic Associations and EpidemiologyForensic and Genetic ResearchGenetic diversity and population structure

Haplotype Block Structure Is Conserved across Mammals

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Guryev, Victor, Smits, Bart M. G, de Belt, Jose van, Verheul, Mark, Hubner, Norbert, Cuppen, Edwin·2006·PLoS Genetics

Abstract

Genetic variation in genomes is organized in haplotype blocks, and species-specific block structure is defined by differential contribution of population history effects in combination with mutation and recombination events. Haplotype maps characterize the common patterns of linkage disequilibrium in populations and have important applications in the design and interpretation of genetic experiments. Although evolutionary processes are known to drive the selection of individual polymorphisms, their effect on haplotype block structure dynamics has not been shown. Here, we present a high-resolution haplotype map for a 5-megabase genomic region in the rat and compare it with the orthologous human and mouse segments. Although the size and fine structure of haplotype blocks are species dependent, there is a significant interspecies overlap in structure and a tendency for blocks to encompass complete genes. Extending these findings to the complete human genome using haplotype map phase I data reveals that linkage disequilibrium values are significantly higher for equally spaced positions in genic regions, including promoters, as compared to intergenic regions, indicating that a selective mechanism exists to maintain combinations of alleles within potentially interacting coding and regulatory regions. Although this characteristic may complicate the identification of causal polymorphisms underlying phenotypic traits, conservation of haplotype structure may be employed for the identification and characterization of functionally important genomic regions.

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  • The isolation of strains and breeds in mouse, rat, cow, and dog results in much longer block lengths than are found in humans.

    “The isolation of strains and breeds in these species results in much longer block lengths than are found in humans.”

    From Linkage disequilibrium--understanding the evolutionary past and mapping the medical future. (2008) · cites this paper as [22]

    The Results/Discussion section says linkage disequilibrium spans larger segments in mouse and rat than in humans and relates larger haplotype blocks to differences in population history. The Introduction also links large blocks in laboratory mice to a bottleneck during domestication. Our copy does not extend this comparison or explanation to cow or dog breeds. (LLM, conf=0.88)

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Authors
Guryev, V., Smits, B. M. G., de Belt, J. V., Verheul, M., Hubner, N., & Cuppen, E.
Affiliations
Hubrecht Institute for Developmental Biology and Stem Cell Research (NL)
Corresponding author
Cuppen, Edwin
Venue
PLoS Genetics
Published
2006-07-28
Volume
2
Issue
7
Pages
e121
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2165123153
Cited by
69
References
30
Citations by year
2024: 1 · 2023: 5 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 6 · 2018: 2 · 2017: 5 · 2015: 2 · 2014: 5 · 2013: 4 · 2012: 6
FWCI
3.42
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • KNAW Research Portal (The Royal Netherlands Academy of Arts and Sciences) (submittedVersion)
Funders
  • European Commission
  • European Science Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
Keywords
haplotype blocks, linkage disequilibrium, HapMap, interspecies conservation, rats, human, mice, promoter, demographic history, recombination, genetic polymorphism
MeSH terms
Animals, Multigene Family, Haplotypes, Humans, Mammals, Models, Genetic, Polymorphism, Genetic, Recombination, Genetic, Species Specificity, Genetic Variation, Linkage Disequilibrium, Evolution, Molecular, Mice, Rats

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