[Hemo-genetic studies of an old isolate from the Lower Rhine]

In an isolate at the Lower Rhine region (North Rhine-Westphalia, Germany) 28 haemogenetic systems have been studied. The immigrants had come mostly from the eastern Hunsrück about 250 years ago. The results have been compared with data from the Lower Rhine region, from Düsseldorf and from eastern Hunsrück (the main origin area of the "Pfälzer"). The cluster analysis shows relatively small genetic distances between these three samples; the population of the isolate is separated by distinct higher genetic distances. The results are discussed considering various population genetic factors.