engleski

GENETIC STRUCTURE OF EUROPEAN BEECH (Fagus sylvatica L.) SEED STANDS FROM DIFFERENT FOREST SITES OF GORJANCI MOUNTAINS AS REVEALED BY ISOENZYMES

Two populations of registered European beech seed stands growing at altitudes of 273 m (Vrhovo) and 657 m (Kozarje) a.s.l. in the Gorjanci Mountains were genetically investigated at 16 polymorphic gene loci. A cline from minor to major allelic polymorphism was revealed at gene loci Aco-B, Idh- A and 6-Pgdh-A. The Kozarje population of beech had a slightly higher genetic multiplicity, a slightly higher effective number of alleles per locus (ν), higher observed heterozygosity (Ho) and a higher level of intrapopulation differentiation (δT). Statistically significant differences in the occurrence of alleles between populations were found at 5 of 16 loci. The average genetic distance of Gregorius (1974) was 6.1 %. European beech populations analyzed from different altitudes on Gorjanci Mountains appeared to be genetically differentiated.

European beech; genetic polymorphism; genetic differentiation; Slovenia

nije evidentirano