01092nas a2200145   4500008004100000245008900041210006900130260000900199300001200208490000700220520064300227100001600870700001700886856004300903       2006                        eng d00aPopulation differentiation among three species of white oak in northeastern Illinois0 aPopulation differentiation among three species of white oak in n  c2006  a206-2150 v263 aWe used microsatellite DNA analysis to examine population differentiation among three species of whiteoak, Quercus alba L., Quercus bicolor Willd., and Quercus macrocarpa Michx., occurring in both pure and mixed stands in northeastern Illinois. Using individual-based Bayesian clustering or principal components analyses, no strong genetic groupings of individuals were detected. This suggests that the three species do not represent distinct and differentiated genetic entities. Nevertheless, traditional approaches where individuals are pre-assigned to species and populations, including F statistics, allele frequency analysis, and Nei1 aCraft, K.J.1 aAshley, M.V.  uhttps://quercus.myspecies.info/node/28