NDLI: Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation

Content Provider	PubMed Central
Author	Sandlund, Odd Terje Karlsson, Sten Thorstad, Eva B. Berg, Ole Kristian Kent, Matthew P. Norum, Ine C. J. Hindar, Kjetil
Copyright Year	2014
Abstract	The river-resident Salmo salar (“småblank”) has been isolated from other Atlantic salmon populations for 9,500 years in upper River Namsen, Norway. This is the only European Atlantic salmon population accomplishing its entire life cycle in a river. Hydropower development during the last six decades has introduced movement barriers and changed more than 50% of the river habitat to lentic conditions. Based on microsatellites and SNPs, genetic variation within småblank was only about 50% of that in the anadromous Atlantic salmon within the same river. The genetic differentiation (F ST) between småblank and the anadromous population was 0.24. This is similar to the differentiation between anadromous Atlantic salmon in Europe and North America. Microsatellite analyses identified three genetic subpopulations within småblank, each with an effective population size Ne of a few hundred individuals. There was no evidence of reduced heterozygosity and allelic richness in contemporary samples (2005–2008) compared with historical samples (1955–56 and 1978–79). However, there was a reduction in genetic differentiation between sampling localities over time. SNP data supported the differentiation of småblank into subpopulations and revealed downstream asymmetric gene flow between subpopulations. In spite of this, genetic variation was not higher in the lower than in the upper areas. The meta-population structure of småblank probably maintains genetic variation better than one panmictic population would do, as long as gene flow among subpopulations is maintained. Småblank is a unique endemic island population of Atlantic salmon. It is in a precarious situation due to a variety of anthropogenic impacts on its restricted habitat area. Thus, maintaining population size and avoiding further habitat fragmentation are important.
Related Links	http://dx.doi.org/10.1002/ece3.1040
Ending Page	1554
Page Count	17
Starting Page	1538
File Format	PDF
ISSN	20457758
e-ISSN	20457758
Journal	Ecology and Evolution
Issue Number	9
Volume Number	4
Language	English
Publisher	BlackWell Publishing Ltd
Publisher Date	2014-05-01
Access Restriction	Open
Rights Holder	BlackWell Publishing Ltd
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Data from: Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation (Dataset)

The origins of Atlantic salmon (Salmo salar L.) recolonizing the River Mersey in northwest England

Spatio-temporal effects of stray hatchery-reared Atlantic salmon Salmo salar on population genetic structure within a 21 km-long Icelandic river system

Data from: The origins of Atlantic salmon (Salmo salar L.) re-colonizing the River Mersey in northwest England (Dataset)

Complex pattern of genetic structuring in the Atlantic salmon (Salmo salar L.) of the River Foyle system in northwest Ireland: disentangling the evolutionary signal from population stochasticity

Space invaders: searching for invasive Smallmouth Bass (Micropterus dolomieu) in a renowned Atlantic Salmon (Salmo salar) river (Dataset)

Transcriptome response of Atlantic salmon (Salmo salar) to competition with ecologically similar non-native species.

Genetic diversity among Atlantic salmon (Salmo salar L.) populations

Evidence of temporal genetic change in wild Atlantic salmon, Salmo salar L., populations affected by farm escapees

Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation

Similar Documents

Data from: Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation (Dataset)

The origins of Atlantic salmon (Salmo salar L.) recolonizing the River Mersey in northwest England

Spatio-temporal effects of stray hatchery-reared Atlantic salmon Salmo salar on population genetic structure within a 21 km-long Icelandic river system

Data from: The origins of Atlantic salmon (Salmo salar L.) re-colonizing the River Mersey in northwest England (Dataset)

Complex pattern of genetic structuring in the Atlantic salmon (Salmo salar L.) of the River Foyle system in northwest Ireland: disentangling the evolutionary signal from population stochasticity

Space invaders: searching for invasive Smallmouth Bass (Micropterus dolomieu) in a renowned Atlantic Salmon (Salmo salar) river (Dataset)

Transcriptome response of Atlantic salmon (Salmo salar) to competition with ecologically similar non-native species.

Genetic diversity among Atlantic salmon (Salmo salar L.) populations

Evidence of temporal genetic change in wild Atlantic salmon, Salmo salar L., populations affected by farm escapees

Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation