Marek Gębczyński

Genetic variability in the European bison

Abstract In the European bison, Bison bonasus (L), 15 proteins coded by 20 loci have been studied. Two of these loci ( Es-3 and Ca ) are polymorphic and the remaining 18 are monomorphic. The average heterozygosity of bisons in Polish herds is 3.5%. The value does not differ from those found in populations of other large mammals in spite of restoration of the European bison population from a mere 13 individuals.

Electrophoretic variation among the five polish populations of the bank vole

Electrophoretic variation in proteins encoded by 21 loci was analysed in five populations of the bank vole (Clethrionomys glareolus) from southern and eastern Poland. Intrapopulation variation is high (P=19.0–33.3%, H=0.039–0.067); the average Neis distance among populations equals 0.193. Comparatively high FIS (0.306) values suggest high levels of differentiation. Variation in allele frequencies (FST is high (ranging from 0.137 to 0.572) and reflects considerable geographic genetic heterogeneity. Genetic and geographic distances are not consistently associated.