Biogeographic insights from a genomic survey of Salmo trouts from the Aralo-Caspian regions
Abstract The eastern-most members of the Salmo trutta species complex in the Aralo-Caspian Sea region were studied to infer their population genetic structure and biogeographic origin. A total of 68 individuals collected from Iranian endorheic inland basins (Namak and Urmia lakes), tributaries of the Caspian (Haraz, Kura, Samur, Volga, and Ural river drainages) and Aral (Amu River) seas, and the Baltic Sea basin were genotyped using 26,202 SNPs via Genotyping-by-Sequencing. The data were analyzed using admixture, discriminant analysis of principal components (DAPC), analysis of molecular variance (AMOVA), species tree, genetic differentiation (FST), allele frequency difference (AFD), and neighbor network approaches. Trout in the southern Caspian Sea basin differ from those of the western and northern Caspian Sea. Based on our results, the Lake Namak trout is divergent from the southern and western Caspian trout populations. Aral Sea and Lake Namak trouts likely originated from the northern and southern Caspian Sea populations, respectively. Although only few populations were considered in this study, six conservation/management units of trouts are proposed..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:849 |
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| Enthalten in: |
Hydrobiologia - 849(2022), 19 vom: 22. Sept., Seite 4325-4339 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Hashemzadeh Segherloo, Iraj [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| BKL: | |
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| Themen: |
Amudarya |
| Anmerkungen: |
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s10750-022-04993-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Abstract The eastern-most members of the Salmo trutta species complex in the Aralo-Caspian Sea region were studied to infer their population genetic structure and biogeographic origin. A total of 68 individuals collected from Iranian endorheic inland basins (Namak and Urmia lakes), tributaries of the Caspian (Haraz, Kura, Samur, Volga, and Ural river drainages) and Aral (Amu River) seas, and the Baltic Sea basin were genotyped using 26,202 SNPs via Genotyping-by-Sequencing. The data were analyzed using admixture, discriminant analysis of principal components (DAPC), analysis of molecular variance (AMOVA), species tree, genetic differentiation (FST), allele frequency difference (AFD), and neighbor network approaches. Trout in the southern Caspian Sea basin differ from those of the western and northern Caspian Sea. Based on our results, the Lake Namak trout is divergent from the southern and western Caspian trout populations. Aral Sea and Lake Namak trouts likely originated from the northern and southern Caspian Sea populations, respectively. Although only few populations were considered in this study, six conservation/management units of trouts are proposed. | ||
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