The genomic distribution of population substructure in four populations using 8,525 autosomal SNPs.

Mark D. Shriver, Giulia C. Kennedy, Esteban J. Parra, Heather A. Lawson, Vibhor Sonpar, Jing Huang, Joshua M. Akey, Keith W. Jones

Research output: Contribution to journalArticle

154 Scopus citations

Abstract

Understanding the nature of evolutionary relationships among persons and populations is important for the efficient application of genome science to biomedical research. We have analysed 8,525 autosomal single nucleotide polymorphisms (SNPs) in 84 individuals from four populations: African-American, European-American, Chinese and Japanese. Individual relationships were reconstructed using the allele sharing distance and the neighbour-joining tree making method. Trees show clear clustering according to population, with the root branching from the African-American clade. The African-American cluster is much less star-like than European-American and East Asian clusters, primarily because of admixture. Furthermore, on the East Asian branch, all ten Chinese individuals cluster together and all ten Japanese individuals cluster together. Using positional information, we demonstrate strong correlations between inter-marker distance and both locus-specific FST (the proportion of total variation due to differentiation) levels and branch lengths. Chromosomal maps of the distribution of locus-specific branch lengths were constructed by combining these data with other published SNP markers (total of 33,704 SNPs). These maps clearly illustrate a non-uniform distribution of human genetic substructure, an instructional and useful paradigm for education and research.

Original languageEnglish (US)
Pages (from-to)274-286
Number of pages13
JournalHuman genomics
Volume1
Issue number4
DOIs
StatePublished - May 2004

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Molecular Biology
  • Genetics
  • Drug Discovery

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    Shriver, M. D., Kennedy, G. C., Parra, E. J., Lawson, H. A., Sonpar, V., Huang, J., Akey, J. M., & Jones, K. W. (2004). The genomic distribution of population substructure in four populations using 8,525 autosomal SNPs. Human genomics, 1(4), 274-286. https://doi.org/10.1186/1479-7364-1-4-274