%0 Journal Article %1 Neumann2004 %A Neumann, K. %A Jansman, H. %A Kayser, A. %A Maak, S. %A Gattermann, R. %D 2004 %E Springer, %J Conservation genetics %K bottleneck common fragmentation habitat hamster %N 2 %P 181-193 %T Multiple bottlenecks in threatened western European populations of the common hamster Cricetus cricetus (L.) %U http://www.springerlink.com/content/w572725144331586/ %V 5 %X Common hamsters Cricetus cricetus (L.)show a highly fragmented distributionpattern across Europe. Over the last decades,human influence caused significant populationdeclines in particular at the western rangeboundary. Despite the initiation of breedingand release programs the genetic structure anddiversity of European common hamsterpopulations is largely unknown. In this study,hamsters from ten localities in five Europeancountries were investigated. Mitochondrialcontrol region was sequenced from 145 animalsrepresenting all sampled populations. 385hamster were screened for polymorphisms at 11microsatellite loci. Both marker systemsrevealed extensive genetic differentiationamong European common hamsters. Westernpopulations displayed very low levels of mtDNAdiversity (H = 0 – 0.2, Alsace, Limburg,Flanders, Baden-Wuerttemberg) compared toeastern populations from Saxony-Anhalt,Thuringia and Southern Moravia (H = 0.663– 0.816). Microsatellite analyses revealed asimilar pattern with low to moderate diversityvalues in western hamsters (A = 1.636 –5.364; H e = 0.111 – 0.504) and highlevels of polymorphism in eastern hamsters(A = 8.909 – 9.818; H e = 0.712– 0.786). High microsatellite based F STmeasures (up to 0.635) suggest a typical islandmodel of distribution with no current gene flowbetween most areas. Western hamster populationsexhibit obvious similarities in mitochondrialhaplotype and microsatellite alleledistributions. Gene trees group westernhamsters consistently together on the samebranch but bootstrap values never reachedsignificance. There are strong indications thatlow diversity in western populations ispartially caused by a joint historic founderevent and not only by recent population breakdowns. Overlapping mitochondrial haplotypesprove a close association between westernhamsters and animals from the east German rangein the recent past which does not support theexistence of a separate subspecies C. c.canescens in Europe. Hamsters from southernMoravia emerged as the genetically mostdistinguished population and could be part of a different genetic lineage in Europe.

@article{Neumann2004, abstract = {Common hamsters Cricetus cricetus (L.)show a highly fragmented distributionpattern across Europe. Over the last decades,human influence caused significant populationdeclines in particular at the western rangeboundary. Despite the initiation of breedingand release programs the genetic structure anddiversity of European common hamsterpopulations is largely unknown. In this study,hamsters from ten localities in five Europeancountries were investigated. Mitochondrialcontrol region was sequenced from 145 animalsrepresenting all sampled populations. 385hamster were screened for polymorphisms at 11microsatellite loci. Both marker systemsrevealed extensive genetic differentiationamong European common hamsters. Westernpopulations displayed very low levels of mtDNAdiversity (H = 0 – 0.2, Alsace, Limburg,Flanders, Baden-Wuerttemberg) compared toeastern populations from Saxony-Anhalt,Thuringia and Southern Moravia (H = 0.663– 0.816). Microsatellite analyses revealed asimilar pattern with low to moderate diversityvalues in western hamsters (A = 1.636 –5.364; H e = 0.111 – 0.504) and highlevels of polymorphism in eastern hamsters(A = 8.909 – 9.818; H e = 0.712– 0.786). High microsatellite based F STmeasures (up to 0.635) suggest a typical islandmodel of distribution with no current gene flowbetween most areas. Western hamster populationsexhibit obvious similarities in mitochondrialhaplotype and microsatellite alleledistributions. Gene trees group westernhamsters consistently together on the samebranch but bootstrap values never reachedsignificance. There are strong indications thatlow diversity in western populations ispartially caused by a joint historic founderevent and not only by recent population breakdowns. Overlapping mitochondrial haplotypesprove a close association between westernhamsters and animals from the east German rangein the recent past which does not support theexistence of a separate subspecies C. c.canescens in Europe. Hamsters from southernMoravia emerged as the genetically mostdistinguished population and could be part of a different genetic lineage in Europe.}, added-at = {2008-07-08T14:28:31.000+0200}, author = {Neumann, K. and Jansman, H. and Kayser, A. and Maak, S. and Gattermann, R.}, biburl = {https://www.bibsonomy.org/bibtex/2f97d5424abde56c55f74869d314b995d/melanie_richter}, editor = {Springer}, interhash = {3fff9a44c180e6818570d48e8d9df9c8}, intrahash = {f97d5424abde56c55f74869d314b995d}, journal = {Conservation genetics}, keywords = {bottleneck common fragmentation habitat hamster}, month = {March}, note = {DOI: 10.1023/B:COGE.0000030002.01948.b3}, number = 2, pages = {181-193}, timestamp = {2008-07-08T14:28:31.000+0200}, title = {Multiple bottlenecks in threatened western European populations of the common hamster Cricetus cricetus (L.)}, url = {http://www.springerlink.com/content/w572725144331586/}, volume = 5, year = 2004 }