DELINEATION OF SEED ZONES FOR EUROPEAN BEECH (FAGUS-SYLVATICA L.) IN THE CZECH-REPUBLIC BASED ON ISOZYME GENE MARKERS

Seed zones for European beech (Fagus sylvatica L.) in the Czech Republ ic were proposed on the basis of isozyme polymorphism Twenty beech pop ulations distributed over the natural range of beech in the target are a were analyzed using 12 isozyme loci. Analysis of genetic distances r evealed the existence of geographical differentiation patterns. Alleli c frequencies were estimated for a square network of 300 points, cover ing the territory of the Czech Republic, employing kriging as an optim um spatial interpolation method. Cluster analysis based on allelic pro files of the kriging points made it possible to divide the investigate d area into eight seed zones. ((C) Inra/Elsevier, Paris.).