Extreme individual marker FST values do not imply population-specific selection in humans: the NRG1 example
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- Gardner, M., Williamson, S., Casals, F. et al. Hum Genet (2007) 121: 759. doi:10.1007/s00439-007-0364-9
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Extreme population differentiation, as measured by the FST value, has been suggested as an indicator of recent population-specific positive selection. Elevated FST values indicating high differentiation between continental groups were previously reported on a linkage disequilibrium region in the Neuregulin 1 gene, a gene which has been associated to schizophrenia. In the present study we show evidence that high FST values may not necessarily imply the action of selection, in particular positive selection, neither globally nor regionally, using the example of the NRG1 gene.