Morphological and genetic differentiation among the Central European white oaks
2004
Jedinakova -- Schmidtova, J. | Paule, L. | Magic, D. | Gomory, D.
Differentiation of the Central European white oaks was studied on the basis of their morphology and genetics. Numeric-taxonomical analysis and isozyme gene markers were used in the investigation of separability of single oak taxa (Quercus robur L., Q. pedunculiflora C. Koch, Q. petraea (Matt.) Liebl., Q. dalechampii Ten., Q. polycarpa Schur, Q. pubescens Willd., Q. virgiliana Ten., Q. frainetto Ten., Q. cerris L.). Together, approx. 1800 trees sampled in 23 stands and 29 populations were analysed, 21 morphological characteristics were measured and 17 isozyme loci were involved in our experiments. Our attempt to differentiate oak species sensu stricto (all nine taxa) on the basis of chosen morphological traits was not successful. Much more we succeeded in the morphological and genetic discrimination of species sensu lato. Results of clustering based on genetic distances are in accordance with taxonomic classification. The biggest differences in allelic frequences among species were observed in Gludh-A, Pgm, Idh-B, and 6-Pgd-B loci.
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