Pyhajarvi T, Garcia-Gil MR, Knurr T, Mikkonen M, Wachowiak W, Savolainen O
Demographic history has influenced nucleotide diversity in European Pinus sylvestris populations
Genetics: 2007 177:1713-1724

To infer the role of natural selection in shaping standing geneticdiversity, it is necessary to assess the genomewide impact ofdemographic history on nucleotide diversity. In this study weanalyzed sequence diversity of 16 nuclear loci in eight Pinussylvestris populations. Populations were divided into four geographicalgroups on the basis of their current location and the geographicalhistory of the region: northern Europe, central Europe, Spain,and Turkey. There were no among-group differences in the levelof silent nucleotide diversity, which was ~0.005/bp in all groups.There was some evidence that linkage disequilibrium extendedfurther in northern Europe than in central Europe: the estimatesof the population recombination rate parameter, {rho}, were 0.0064and 0.0294, respectively. The summary statistics of nucleotidediversity in central and northern European populations werecompatible with an ancient bottleneck rather than the standardneutral model.

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