|
|||||
|
|
Genetic differentiation of southeast Baltic populations of sea trout inferred from single nucleotide polymorphisms |
|
| Authors: | A Poćwierz‐Kotus R Bernaś P Dębowski M P Kent S Lien M Kesler S Titov E Leliūna H Jespersen A Drywa R Wenne |
| Institution: | 1. Institute of Oceanology, Polish Academy of Sciences, Powstanców Warszawy 55, 81‐712, Sopot, Poland;2. Department of Migratory Fishes Synów Pu?ku 37, 80‐298 Gdansk, Inland Fisheries Institute, Olsztyn, Poland;3. Centre for Integrative Genetics (CIGENE), Norwegian University of Life Sciences, Postboks 5003, 1432 ?s, Norway;4. Estonian Marine Institute, Tartu University, EE‐12618 Tallinn, Estonia;5. State Research Institute on Lake and River Fisheries (GosNIORKH), Makarova emb., 26, St. Petersburg 199053, Russian Federation;6. Institute of Ecology of Nature Research Centre, Akademijos str. 2, LT‐08412, Vilnius‐21, Lithuania;7. Technical and Environmental Services, Municipality of Bornholm, Skovl?kken 4, Tejn, 3770, Allinge, Denmark;8. National Marine Fisheries Research Institute, Ko??ataja 1, 81‐332, Gdynia, Poland;9. Address for correspondence;10. R. Wenne, Institute of Oceanology, Polish Academy of Sciences, Powstanców Warszawy 55, 81‐712 Sopot, Poland.;11. E‐mail: |
| Abstract: | Sea trout (Salmo trutta m. trutta) is a migratory form of brown trout common in the Baltic Sea. Nine populations from the southeast Baltic (Poland; Lithuania; Denmark, Bornholm; Estonia and Russia) were genotyped using iPLEX Gold technology (Sequenom) with 62 informative SNPs. A diagnostic panel of 23 SNPs was applied to estimate genetic differentiation and assess the population structure of Baltic sea trout. The highest level of pairwise FST differences was observed between the Russian (East Gulf of Finland) and Polish (Baltic main basin) populations. The lowest differences were between the two Polish and the Polish and Lithuanian populations. A genetic similarity was noted between the Estonian Riguldi River and Danish Bornholm populations, and this finding was supported by a Bayesian and factorial correspondence analysis. Diversity within populations was highest for populations from Estonia and lowest for the Lithuanian population. Genetic structure analysis indicated that individuals from the nine populations were clustered into four groups. |
| Keywords: | genetics populations Salmo trutta SNP stocking |