NDLI: Multiple bottlenecks in threatened western European populations of the common hamster Cricetus cricetus (L.)

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Conservation Genetics : Volume 5, Issue 1, January 2004

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Conservation Genetics : Volume 1

Multiple bottlenecks in threatened western European populations of the common hamster Cricetus cricetus (L.)

Content Provider	Springer Nature Link
Author	Neumann, K. Jansman, H. Kayser, A. Maak, S. Gattermann, R.
Copyright Year	2004
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.
Starting Page	181
Ending Page	193
Page Count	13
File Format	PDF
ISSN	15660621
Journal	Conservation Genetics
Volume Number	5
Issue Number	2
e-ISSN	15729737
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Evolutionary Biology Plant Sciences Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics

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