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Browsing by Person "Evdotchenko, Dmitri"

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    Untersuchung der Informativität neuer Mikrosatellitenloci beim Kamel
    (2001) Evdotchenko, Dmitri; Geldermann, Hermann
    The goal of the investigations was it to use new primers for the representation of polymorphic microsatellite loci in different camel species and to examine new microsatellite loci for Informativity. Some polymorphic loci should be used for the investigation of the genetic differentiation of different dromedary races from Kenya and a bactrian race from Sibiria. For the investigations samples from two species of the old world camels (Camelus bactrianus and Camelus dromedarius) and two species of the new world camels (Llama pacos and Llama glama) were available. As DNA source full blood or leukocyte was used. The representation of the microsatellite loci was carried out with the help of the PCR and following fragment length analysis by means of an automated DNA-Sequencer (A.L.F.). The number of the alleles, their fragment lengths as well as the frequencies of allels and genotypes were computed per locus and taken as original data for estimation of invormativeness. Primer pairs for 34 sequenced loci were tested. 25 of this loci showed specific PCR amplifications with bactrian and dromedary and were therefore included into the further investigations. For instance one third of the loci were found as monomorph, the remaining loci were polymorph. 9 from 17 polymorphic loci showed more than ten alleles in all examined species. The genetic distances between the examined species, computed by means of new microsatellite loci, refer to clear differences between old and new world camels. With the investigations of some dromedary races from Kenya it was shown that the genetic distances estimated on the basis the new marker loci correlated with geographical distances between the races. The investigations supplied thus new informative markers for different genetic analysis in camel. The markers could be also important for the camel breeding (e.g. parentage testing).