Evolutionary genetics of Atlantic salmon (Salmo salar L.)
This thesis deals with evolutionary genetics of Atlantic salmon populations, with the special emphasis on the roles of migration, random genetic drift, mutation and natural selection affecting the patterns of molecular variation across contemporary and historical time scales. Studies of mitochondria...
Main Author: | |
---|---|
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
2004
|
Subjects: | |
Online Access: | https://pub.epsilon.slu.se/605/ https://pub.epsilon.slu.se/605/1/Silvestria324.pdf |
id |
ftslunivuppsala:oai:pub.epsilon.slu.se:605 |
---|---|
record_format |
openpolar |
spelling |
ftslunivuppsala:oai:pub.epsilon.slu.se:605 2024-06-09T07:44:45+00:00 Evolutionary genetics of Atlantic salmon (Salmo salar L.) Vasemägi, Anti 2004-08 application/pdf https://pub.epsilon.slu.se/605/ https://pub.epsilon.slu.se/605/1/Silvestria324.pdf eng eng https://pub.epsilon.slu.se/605/1/Silvestria324.pdf Vasemägi, Anti (2004). Evolutionary genetics of Atlantic salmon (Salmo salar L.). Diss. (sammanfattning/summary) Umeå : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 324 ISBN ISBN 91-576-6708-X [Doctoral thesis] Not in use please see Agris categories Doctoral thesis NonPeerReviewed info:eu-repo/semantics/doctoralThesis 2004 ftslunivuppsala 2024-05-16T04:04:25Z This thesis deals with evolutionary genetics of Atlantic salmon populations, with the special emphasis on the roles of migration, random genetic drift, mutation and natural selection affecting the patterns of molecular variation across contemporary and historical time scales. Studies of mitochondrial DNA variation supported the hypothesis of multiple post-glacial colonization events of the Baltic Sea. The Eastern Atlantic populations differ from the geographically close southern Baltic populations, indicating absence of inward and limited outward gene flow through the Danish straits during the last 8000 years. Four common European mitochondrial haplotypes derive from the ancestral ND1-BBBA haplotype by one-step substitutions. Our results suggest that wild populations still have an important role in re-colonization processes of the former salmon rivers where salmon populations have been driven to extinction due to human activities. Spatio-temporal analysis over eighteen years provided genetic evidence of immigration from compensatory hatchery releases into one of the biggest wild Atlantic salmon population in the Baltic Sea and emphasize the genetic risks associated with current large-scale stocking practices in the Baltic. For restoration of former salmon rivers in the Gulf of Finland we recommend that two closest native salmon populations should be preferred to help to fill in the currently missing “building blocks” that are important for the persistence of genetic variation and long-term survival of salmon populations in Estonia. We identified several expressed sequence tag (EST) loci that are potentially affected by divergent selection demonstrating that EST-scans may provide suitable strategy to discover functionally important genetic variation both in model and non-model organisms. Doctoral or Postdoctoral Thesis Atlantic salmon Salmo salar Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
institution |
Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Not in use please see Agris categories |
spellingShingle |
Not in use please see Agris categories Vasemägi, Anti Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
topic_facet |
Not in use please see Agris categories |
description |
This thesis deals with evolutionary genetics of Atlantic salmon populations, with the special emphasis on the roles of migration, random genetic drift, mutation and natural selection affecting the patterns of molecular variation across contemporary and historical time scales. Studies of mitochondrial DNA variation supported the hypothesis of multiple post-glacial colonization events of the Baltic Sea. The Eastern Atlantic populations differ from the geographically close southern Baltic populations, indicating absence of inward and limited outward gene flow through the Danish straits during the last 8000 years. Four common European mitochondrial haplotypes derive from the ancestral ND1-BBBA haplotype by one-step substitutions. Our results suggest that wild populations still have an important role in re-colonization processes of the former salmon rivers where salmon populations have been driven to extinction due to human activities. Spatio-temporal analysis over eighteen years provided genetic evidence of immigration from compensatory hatchery releases into one of the biggest wild Atlantic salmon population in the Baltic Sea and emphasize the genetic risks associated with current large-scale stocking practices in the Baltic. For restoration of former salmon rivers in the Gulf of Finland we recommend that two closest native salmon populations should be preferred to help to fill in the currently missing “building blocks” that are important for the persistence of genetic variation and long-term survival of salmon populations in Estonia. We identified several expressed sequence tag (EST) loci that are potentially affected by divergent selection demonstrating that EST-scans may provide suitable strategy to discover functionally important genetic variation both in model and non-model organisms. |
format |
Doctoral or Postdoctoral Thesis |
author |
Vasemägi, Anti |
author_facet |
Vasemägi, Anti |
author_sort |
Vasemägi, Anti |
title |
Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
title_short |
Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
title_full |
Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
title_fullStr |
Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
title_full_unstemmed |
Evolutionary genetics of Atlantic salmon (Salmo salar L.) |
title_sort |
evolutionary genetics of atlantic salmon (salmo salar l.) |
publishDate |
2004 |
url |
https://pub.epsilon.slu.se/605/ https://pub.epsilon.slu.se/605/1/Silvestria324.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://pub.epsilon.slu.se/605/1/Silvestria324.pdf Vasemägi, Anti (2004). Evolutionary genetics of Atlantic salmon (Salmo salar L.). Diss. (sammanfattning/summary) Umeå : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 324 ISBN ISBN 91-576-6708-X [Doctoral thesis] |
_version_ |
1801373564023078912 |