2012
DOI: 10.1002/ece3.200
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Microsatellite variation and genetic structure of brook trout (Salvelinus fontinalis) populations in Labrador and neighboring Atlantic Canada: evidence for ongoing gene flow and dual routes of post‐Wisconsinan colonization

Abstract: In conservation genetics and management, it is important to understand the contribution of historical and contemporary processes to geographic patterns of genetic structure in order to characterize and preserve diversity. As part of a 10-year monitoring program by the Government of Newfoundland and Labrador, Canada, we measured the population genetic structure of the world's most northern native populations of brook trout (Salvelinus fontinalis) in Labrador to gather baseline data to facilitate monitoring of f… Show more

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Cited by 15 publications
(11 citation statements)
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“…; Pilgrim et al. ). This may be especially true for systems recently colonized post‐glacially by founding populations with extremely large historical effective sizes where drift is essentially negligible.…”
Section: Discussionmentioning
confidence: 97%
See 1 more Smart Citation
“…; Pilgrim et al. ). This may be especially true for systems recently colonized post‐glacially by founding populations with extremely large historical effective sizes where drift is essentially negligible.…”
Section: Discussionmentioning
confidence: 97%
“…Historical gene flow and the retention of ancestral polymorphisms have been implicated in the lack of differentiation and obscured contemporary population structure in a variety of other northern and Arctic salmonids (e.g., Harris and Taylor ; Pilgrim et al. ). Pronounced historical gene flow in this study is evidenced by the lack of differentiation at mtDNA between Sandy and GBL lakes (sharing of common haplotypes between these systems), although these two systems are clearly isolated from each other based on microsatellite DNA analysis.…”
Section: Discussionmentioning
confidence: 99%
“…High population differentiation is common among Brook Trout and has been documented in many other studies, even when barriers to fish movement are minimal (Pilgrim et al. ; Kelson et al. ; Bruce et al.…”
Section: Discussionmentioning
confidence: 70%
“…This habitat restriction has resulted in a large degree of genetic structuring among stream‐dwelling Brook Trout populations (Pilgrim et al. ; Kelson et al. ; Bruce et al.…”
mentioning
confidence: 99%
“…Another finding in our data is that the gradient of diversity between North and South Island populations evident in the mtDNA data is much reduced. Gradients of diversity attributed to glaciation on the basis of mtDNA data that were much less obvious in microsatellite data have been seen in other fishes (Pilgrim et al 2012). This suggests that the imprint of glaciation is much less discernible at microsatellite loci.…”
Section: Comparison Of Species Patterns From Microsatellite and Mtdnamentioning
confidence: 91%