Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs
Source at https://doi.org/10.1111/eff.12486 . In northern Fennoscandian lakes, monophylogenetic lineages of postglacial fishes are radiating into several adaptive forms, but the speciation process is still at an incipient stage. The speciation process has received increased attention over the years,...
Published in: | Ecology of Freshwater Fish |
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Online Access: | https://hdl.handle.net/10037/16635 https://doi.org/10.1111/eff.12486 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16635 2023-05-15T16:13:06+02:00 Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs Bitz-Thorsen, Julie Häkli, Katja Bhat, Shripathi Præbel, Kim 2019-04-29 https://hdl.handle.net/10037/16635 https://doi.org/10.1111/eff.12486 eng eng Wiley Bitz-Thorsen, J., Häkli, K., Bhat, S. & Præbel, K. (2019). Replication data for: Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs. https://doi.org/10.18710/CGZDTP . DataverseNO, V1, UNF:6:qE0ntQe8Wk46ViKAK6RkDA== [fileUNF] Häkli, K. (2019). The speciation landscape of European whitefish in Northern Fennoscandia – the importance of deglaciation history, standing genetic variation and natural selection. (Doctoral thesis). https://hdl.handle.net/10037/16887 . Ecology of Freshwater Fish Bitz‐Thorsen, J., Häkli, K., Bhat, S. & Præbel, K. (2019). Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs. Ecology of Freshwater Fish . https://doi.org/10.1111/eff.12486 FRIDAID 1712047 doi:10.1111/eff.12486 0906-6691 1600-0633 https://hdl.handle.net/10037/16635 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480::Systematic zoology: 487 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Systematisk zoologi: 487 Journal article Tidsskriftartikkel Peer reviewed 2019 ftunivtroemsoe https://doi.org/10.1111/eff.12486 2021-06-25T17:56:56Z Source at https://doi.org/10.1111/eff.12486 . In northern Fennoscandian lakes, monophylogenetic lineages of postglacial fishes are radiating into several adaptive forms, but the speciation process is still at an incipient stage. The speciation process has received increased attention over the years, but the underlying mechanisms and drivers are still debated and poorly understood. European whitefish ( Coregonus lavaretus [L.]) is the most abundant fish species in these lakes and has evolved into several ecomorphs adapted to different trophic niches and habitats. Genetic divergence has been observed among these ecomorphs, but the mechanism(s) responsible for the ongoing build‐up of reproductive isolation has still to be revealed. As these systems are young in evolutionary time (<10 kyr), prezygotic and postzygotic extrinsic isolation mechanisms are thought to be more likely to contribute to the reproductive isolation than intrinsic isolation mechanisms. We determined the gonadosomatic index (GSI) of three ecomorphs in two replicated lake systems and used GSI as a proxy to investigate the prezygotic isolation mechanism, allochrony, as a driving factor of divergence in this adaptive radiation of whitefish. We found that the three ecomorphs differed in GSI values within and between lakes, suggesting different spawning times of the ecomorphs. We also show that males of one ecomorph had equal onset of maturity as another ecomorph, giving novel insights into the ongoing gene flow observed between ecomorphs. The result supports allochrony as a driver for the divergence process of whitefish ecomorphs, but more evidence is still needed to rule out that the three ecomorphs make use of different spawning grounds. Article in Journal/Newspaper Fennoscandian University of Tromsø: Munin Open Research Archive Ecology of Freshwater Fish 29 1 40 49 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Systematic zoology: 487 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Systematisk zoologi: 487 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Systematic zoology: 487 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Systematisk zoologi: 487 Bitz-Thorsen, Julie Häkli, Katja Bhat, Shripathi Præbel, Kim Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Systematic zoology: 487 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Systematisk zoologi: 487 |
description |
Source at https://doi.org/10.1111/eff.12486 . In northern Fennoscandian lakes, monophylogenetic lineages of postglacial fishes are radiating into several adaptive forms, but the speciation process is still at an incipient stage. The speciation process has received increased attention over the years, but the underlying mechanisms and drivers are still debated and poorly understood. European whitefish ( Coregonus lavaretus [L.]) is the most abundant fish species in these lakes and has evolved into several ecomorphs adapted to different trophic niches and habitats. Genetic divergence has been observed among these ecomorphs, but the mechanism(s) responsible for the ongoing build‐up of reproductive isolation has still to be revealed. As these systems are young in evolutionary time (<10 kyr), prezygotic and postzygotic extrinsic isolation mechanisms are thought to be more likely to contribute to the reproductive isolation than intrinsic isolation mechanisms. We determined the gonadosomatic index (GSI) of three ecomorphs in two replicated lake systems and used GSI as a proxy to investigate the prezygotic isolation mechanism, allochrony, as a driving factor of divergence in this adaptive radiation of whitefish. We found that the three ecomorphs differed in GSI values within and between lakes, suggesting different spawning times of the ecomorphs. We also show that males of one ecomorph had equal onset of maturity as another ecomorph, giving novel insights into the ongoing gene flow observed between ecomorphs. The result supports allochrony as a driver for the divergence process of whitefish ecomorphs, but more evidence is still needed to rule out that the three ecomorphs make use of different spawning grounds. |
format |
Article in Journal/Newspaper |
author |
Bitz-Thorsen, Julie Häkli, Katja Bhat, Shripathi Præbel, Kim |
author_facet |
Bitz-Thorsen, Julie Häkli, Katja Bhat, Shripathi Præbel, Kim |
author_sort |
Bitz-Thorsen, Julie |
title |
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
title_short |
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
title_full |
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
title_fullStr |
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
title_full_unstemmed |
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs |
title_sort |
allochrony as a potential driver for reproductive isolation in adaptive radiations of european whitefish ecomorphs |
publisher |
Wiley |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16635 https://doi.org/10.1111/eff.12486 |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_relation |
Bitz-Thorsen, J., Häkli, K., Bhat, S. & Præbel, K. (2019). Replication data for: Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs. https://doi.org/10.18710/CGZDTP . DataverseNO, V1, UNF:6:qE0ntQe8Wk46ViKAK6RkDA== [fileUNF] Häkli, K. (2019). The speciation landscape of European whitefish in Northern Fennoscandia – the importance of deglaciation history, standing genetic variation and natural selection. (Doctoral thesis). https://hdl.handle.net/10037/16887 . Ecology of Freshwater Fish Bitz‐Thorsen, J., Häkli, K., Bhat, S. & Præbel, K. (2019). Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs. Ecology of Freshwater Fish . https://doi.org/10.1111/eff.12486 FRIDAID 1712047 doi:10.1111/eff.12486 0906-6691 1600-0633 https://hdl.handle.net/10037/16635 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1111/eff.12486 |
container_title |
Ecology of Freshwater Fish |
container_volume |
29 |
container_issue |
1 |
container_start_page |
40 |
op_container_end_page |
49 |
_version_ |
1765998708459044864 |