Abstract
AbstractThe structure of genetic variation in disjunct Scandinavian populations ofHippocrepis emeruswas studied using allozymes and DNA fingerprinting. Variation in the three native regional populations in Scandinavia was compared with that in a recently introduced population in Sweden. In contrast to the recently introduced population, the native Scandinavian isolates ofH. emerusshowed high levels of allozyme fixation and low levels of DNA diversity. Variation in allozymes and at DNA fingerprint loci showed closely congruent patterns of geographic variation, with pronounced differentiation between the native Norwegian and Swedish isolates of the species. The structure of genetic variation in native ScandinavianH. emerusis interpreted in terms of historical population bottlenecks and founder events during the species' postglacial immigration into Scandinavia.
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