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Allozymic variation in the European polecat Mustela putorius from western France

100%

Lode T.

Acta Theriologica

1999

tom 44

nr 2

Allozymic variation was surveyed in 21 European polecats Mustela putorius Linnaeus, 1758 from western France, using starch gel electrophoresis. Fourteen loci were successfully examined and genetic variation was detected at 28.6% of the loci at the 0.05 level. Heterozygosity level averaged 0.082. European polecats from western France clearly showed significant levels of genetic variability. This result contrasts with previously reported analyses from Danish populations.

Depauperated gene pools in Marmota m. marmota are caused by an ancient bottleneck: electrophoretic analysis of wild populations from Austria and Switzerland

80%

Preleuthner M. , Pinsker W.

Acta Theriologica. Supplement

1993

tom 38

nr 2

Samples from 15 populations of the Alpine marmot Marmota m. marmota (Linnaeus, 1758) were surveyed electrophoretically for allozyme variation. Only 2 out of 50 enzyme loci showed polymorphism. Average heterozygosity was found to be low with 1.2%. No rare alleles were detected among the 8430 genes examined. The geographic variation at the two polymorphic loci (Pep-1 and Sod-1) was analysed in more detail. The distribution pattern of the allele frequencies indicates genetic differentiation between autochthonous and introduced populations. No striking deviations of the genotype distributions from Hardy-Weinberg equilibrium were observed. Thus the population structure is apparently not affected by inbreeding. The obviously diminished genetic variation and the geographic pattern of the allele frequencies at the two variable loci can be best explained by assuming a severe bottleneck in the recent past.