Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.)
It may often be necessary to perform genetic analyses of temporal replicates to estimate the significance of spatial variation independently from that of temporal variation in order to ensure the reliability of estimates of a defined population structure. Nevertheless, temporal studies of genetic di...
Published in: | Molecular Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://dx.doi.org/10.1046/j.1365-294x.1999.00547.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294X.1999.00547.x |
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crwiley:10.1046/j.1365-294x.1999.00547.x 2024-06-02T08:03:34+00:00 Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) TESSIER, NATHALIE BERNATCHEZ, LOUIS 1999 http://dx.doi.org/10.1046/j.1365-294x.1999.00547.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294X.1999.00547.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 8, issue 2, page 169-179 ISSN 0962-1083 1365-294X journal-article 1999 crwiley https://doi.org/10.1046/j.1365-294x.1999.00547.x 2024-05-03T11:23:48Z It may often be necessary to perform genetic analyses of temporal replicates to estimate the significance of spatial variation independently from that of temporal variation in order to ensure the reliability of estimates of a defined population structure. Nevertheless, temporal studies of genetic diversity remain scarce in the literature relative to the plethora of empirical studies of population structure. In vertebrates, a limited number of studies have specifically assessed the temporal stability of population structure for more than one generation. In this study, we performed a microsatellite analysis of DNA obtained from archived scales to compare the population structure among four sympatric landlocked populations of Atlantic salmon ( Salmo salar ) over a time frame of three to five generations. The same patterns of allele frequency distribution, θ, R ST and genetic distance estimates were observed among populations for two time periods, confirming the temporal stability of the population structure. Despite population declines and stocking during this period, no statistically significant changes in intrapopulation genetic diversity were apparent. This study illustrates the feasibility and usefulness of microsatellite analysis of temporal samples, not only to infer changes of intrapopulation genetic diversity, but also to assess the stability of population structure over a time frame of several generations. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Molecular Ecology 8 2 169 179 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
It may often be necessary to perform genetic analyses of temporal replicates to estimate the significance of spatial variation independently from that of temporal variation in order to ensure the reliability of estimates of a defined population structure. Nevertheless, temporal studies of genetic diversity remain scarce in the literature relative to the plethora of empirical studies of population structure. In vertebrates, a limited number of studies have specifically assessed the temporal stability of population structure for more than one generation. In this study, we performed a microsatellite analysis of DNA obtained from archived scales to compare the population structure among four sympatric landlocked populations of Atlantic salmon ( Salmo salar ) over a time frame of three to five generations. The same patterns of allele frequency distribution, θ, R ST and genetic distance estimates were observed among populations for two time periods, confirming the temporal stability of the population structure. Despite population declines and stocking during this period, no statistically significant changes in intrapopulation genetic diversity were apparent. This study illustrates the feasibility and usefulness of microsatellite analysis of temporal samples, not only to infer changes of intrapopulation genetic diversity, but also to assess the stability of population structure over a time frame of several generations. |
format |
Article in Journal/Newspaper |
author |
TESSIER, NATHALIE BERNATCHEZ, LOUIS |
spellingShingle |
TESSIER, NATHALIE BERNATCHEZ, LOUIS Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
author_facet |
TESSIER, NATHALIE BERNATCHEZ, LOUIS |
author_sort |
TESSIER, NATHALIE |
title |
Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
title_short |
Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
title_full |
Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
title_fullStr |
Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
title_full_unstemmed |
Stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked Atlantic salmon ( Salmo salar L.) |
title_sort |
stability of population structure and genetic diversity across generations assessed by microsatellites among sympatric populations of landlocked atlantic salmon ( salmo salar l.) |
publisher |
Wiley |
publishDate |
1999 |
url |
http://dx.doi.org/10.1046/j.1365-294x.1999.00547.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294X.1999.00547.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294X.1999.00547.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Molecular Ecology volume 8, issue 2, page 169-179 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-294x.1999.00547.x |
container_title |
Molecular Ecology |
container_volume |
8 |
container_issue |
2 |
container_start_page |
169 |
op_container_end_page |
179 |
_version_ |
1800748126540136448 |