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- Publisher Website: 10.1098/rspb.2023.2617
- Scopus: eid_2-s2.0-85190134657
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Article: Parallel evolution despite low genetic diversity in three-spined sticklebacks
Title | Parallel evolution despite low genetic diversity in three-spined sticklebacks |
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Authors | |
Keywords | adaptation Gasterosteus aculeatus genetic diversity parallel evolution |
Issue Date | 10-Apr-2024 |
Publisher | The Royal Society |
Citation | Proceedings of the Royal Society B: Biological Sciences, 2024, v. 291, n. 2020 How to Cite? |
Abstract | When populations repeatedly adapt to similar environments they can evolve similar phenotypes based on shared genetic mechanisms (parallel evolution). The likelihood of parallel evolution is affected by demographic history, as it depends on the standing genetic variation of the source population. The three-spined stickleback (Gasterosteus aculeatus) repeatedly colonized and adapted to brackish and freshwater. Most parallel evolution studies in G. aculeatus were conducted at high latitudes, where freshwater populations maintain connectivity to the source marine populations. Here, we analysed southern and northern European marine and freshwater populations to test two hypotheses. First, that southern European freshwater populations (which currently lack connection to marine populations) lost genetic diversity due to bottlenecks and inbreeding compared to their northern counterparts. Second, that the degree of genetic parallelism is higher among northern than southern European freshwater populations, as the latter have been subjected to strong drift due to isolation. The results show that southern populations exhibit lower genetic diversity but a higher degree of genetic parallelism than northern populations. Hence, they confirm the hypothesis that southern populations have lost genetic diversity, but this loss probably happened after they had already adapted to freshwater conditions, explaining the high degree of genetic parallelism in the south. |
Persistent Identifier | http://hdl.handle.net/10722/347149 |
ISSN | 2023 Impact Factor: 3.8 2023 SCImago Journal Rankings: 1.692 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Coll-Costa, Carla | - |
dc.contributor.author | Dahms, Carolin | - |
dc.contributor.author | Kemppainen, Petri | - |
dc.contributor.author | Alexandre, Carlos M | - |
dc.contributor.author | Ribeiro, Filipe | - |
dc.contributor.author | Zanella, Davor | - |
dc.contributor.author | Zanella, Linda | - |
dc.contributor.author | Merilä, Juha | - |
dc.contributor.author | Momigliano, Paolo | - |
dc.date.accessioned | 2024-09-18T00:30:41Z | - |
dc.date.available | 2024-09-18T00:30:41Z | - |
dc.date.issued | 2024-04-10 | - |
dc.identifier.citation | Proceedings of the Royal Society B: Biological Sciences, 2024, v. 291, n. 2020 | - |
dc.identifier.issn | 0962-8452 | - |
dc.identifier.uri | http://hdl.handle.net/10722/347149 | - |
dc.description.abstract | <p>When populations repeatedly adapt to similar environments they can evolve similar phenotypes based on shared genetic mechanisms (parallel evolution). The likelihood of parallel evolution is affected by demographic history, as it depends on the standing genetic variation of the source population. The three-spined stickleback (<em>Gasterosteus aculeatus</em>) repeatedly colonized and adapted to brackish and freshwater. Most parallel evolution studies in <em>G. aculeatus</em> were conducted at high latitudes, where freshwater populations maintain connectivity to the source marine populations. Here, we analysed southern and northern European marine and freshwater populations to test two hypotheses. First, that southern European freshwater populations (which currently lack connection to marine populations) lost genetic diversity due to bottlenecks and inbreeding compared to their northern counterparts. Second, that the degree of genetic parallelism is higher among northern than southern European freshwater populations, as the latter have been subjected to strong drift due to isolation. The results show that southern populations exhibit lower genetic diversity but a higher degree of genetic parallelism than northern populations. Hence, they confirm the hypothesis that southern populations have lost genetic diversity, but this loss probably happened after they had already adapted to freshwater conditions, explaining the high degree of genetic parallelism in the south.</p> | - |
dc.language | eng | - |
dc.publisher | The Royal Society | - |
dc.relation.ispartof | Proceedings of the Royal Society B: Biological Sciences | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | adaptation | - |
dc.subject | Gasterosteus aculeatus | - |
dc.subject | genetic diversity | - |
dc.subject | parallel evolution | - |
dc.title | Parallel evolution despite low genetic diversity in three-spined sticklebacks | - |
dc.type | Article | - |
dc.identifier.doi | 10.1098/rspb.2023.2617 | - |
dc.identifier.scopus | eid_2-s2.0-85190134657 | - |
dc.identifier.volume | 291 | - |
dc.identifier.issue | 2020 | - |
dc.identifier.eissn | 1471-2954 | - |
dc.identifier.isi | WOS:001198859600005 | - |
dc.identifier.issnl | 0962-8452 | - |