NDLI: A Bayesian approach to conservation genetics of Blanding’s turtle (Emys blandingii) in Ontario, Canada

Content Provider	Springer Nature Link
Author	Davy, Christina M. Bernardo, Pedro H. Murphy, Robert W.
Copyright Year	2013
Abstract	Blanding’s turtle, Emys blandingii, is a globally endangered species with a range centred on the Great Lakes of North America. Several disjunct populations also occur along the East Coast of North America. Previous studies suggest that the Great Lakes portion of the species’ range exhibits panmixia. However, E. blandingii is restricted to relatively small populations in many areas around the Great Lakes. Therefore, panmixia across large geographic distances in this area is unlikely. Here, we apply Bayesian analyses of population structure to samples collected across southern Ontario (N = 97) to test a null hypothesis of panmixia and assess possible management units (MUs), and to estimate rates of gene flow across the study area. Sampled sites in Ontario represent a minimum of four distinct genetic clusters of E. blandingii, which we recommend should be considered as independent MUs. Preliminary evidence suggests that further structure may be present in less robustly sampled areas, which deserve further consideration. Genetic diversity at sampled sites is comparable to that reported for other freshwater turtles. Our comparison between this study and previous work confirms that genetic diversity in E. blandingii is reduced in disjunct eastern populations compared to populations centred on the Great Lakes. Genetic diversity in E. blandingii is not correlated with latitude, and instead may reflect post-glacial dispersal of this species from multiple Pleistocene glacial refugia.
Starting Page	319
Ending Page	330
Page Count	12
File Format	PDF
ISSN	15660621
Journal	Conservation Genetics
Volume Number	15
Issue Number	2
e-ISSN	15729737
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-10-19
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Population structure STRUCTURE TESS GENECLASS Heterozygosity Conservation Biology/Ecology Plant Sciences Animal Anatomy / Morphology / Histology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics

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