engleski

Genetic differentation of european beech (Fagus sylvatica L.) in Bosnia and Herzegovina

Molecular genetic identification was performed with selected isoenzyme markers in eight natural European beech (Fagus sylvatica L. s.l.) populations, in the wider area of Bosnia and Herzegovina. Variability is analyzed by using 10 isoenzyme systems on 16 polymorphous loci, with 51 alleles. Average number of alleles per locus ranged between 2, 37 and 2, 75. Obtained results show the existence of great variability within the populations. Genetic multi-locus diversity ranged between 55, 26 and 185, 29, and gene pool diversity between 1, 26 and 1, 36. Medium size differentiation for all populations is quite low and is Dj = 0, 23. This size shows the proportion of the total diversity, which can be estimated to around 97 %. This is due to the genetic variability among individuals within the populations, as well as the variability and poor differentiation among the populations. In order to maintain natural genetic resources of beech in Bosnia and Herzegovina, it should be establish dense network of gene banks in situ and ex situ (seed zones, seed stands, clonal and seedling plantations), which are necessary for maintaining genetic diversity of the populations. On the basis of research each important ecological niche for European beech should have its gene bank, with appropriate collection of genotypes, in order to preserve ecological and physiological features of the populations.

European beech; genetic differentation

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