Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats
Understanding how a monophyletic lineage of a species diverges into several adaptive forms has received increased attention in recent years, but the underlying mechanisms in this process are still under debate. Postglacial fishes are excellent model organisms for exploring this process, especially t...
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ftpubmed:oai:pubmedcentral.nih.gov:3892361 2023-05-15T16:13:04+02:00 Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats Præbel, Kim Knudsen, Rune Siwertsson, Anna Karhunen, Markku Kahilainen, Kimmo K Ovaskainen, Otso Østbye, Kjartan Peruzzi, Stefano Fevolden, Svein-Erik Amundsen, Per-Arne 2013-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892361 http://www.ncbi.nlm.nih.gov/pubmed/24455129 https://doi.org/10.1002/ece3.867 en eng Blackwell Publishing Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892361 http://www.ncbi.nlm.nih.gov/pubmed/24455129 http://dx.doi.org/10.1002/ece3.867 © 2013 Published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. CC-BY Original Research Text 2013 ftpubmed https://doi.org/10.1002/ece3.867 2014-01-26T01:36:50Z Understanding how a monophyletic lineage of a species diverges into several adaptive forms has received increased attention in recent years, but the underlying mechanisms in this process are still under debate. Postglacial fishes are excellent model organisms for exploring this process, especially the initial stages of ecological speciation, as postglacial lakes represent replicated discrete environments with variation in available niches. Here, we combine data of niche utilization, trophic morphology, and 17 microsatellite loci to investigate the diversification process of three sympatric European whitefish morphs from three northern Fennoscandian lakes. The morphological divergence in the gill raker number among the whitefish morphs was related to the utilization of different trophic niches and was associated with reproductive isolation within and across lakes. The intralacustrine comparison of whitefish morphs showed that these systems represent two levels of adaptive divergence: (1) a consistent littoral–pelagic resource axis; and (2) a more variable littoral–profundal resource axis. The results also indicate that the profundal whitefish morph has diverged repeatedly from the ancestral littoral whitefish morph in sympatry in two different watercourses. In contrast, all the analyses performed revealed clustering of the pelagic whitefish morphs across lakes suggesting parallel postglacial immigration with the littoral whitefish morph into each lake. Finally, the analyses strongly suggested that the trophic adaptive trait, number of gill rakers, was under diversifying selection in the different whitefish morphs. Together, the results support a complex evolutionary scenario where ecological speciation acts, but where both allopatric (colonization history) and sympatric (within watercourse divergence) processes are involved. Text Fennoscandian PubMed Central (PMC) Ecology and Evolution 3 15 4970 4986 |
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Original Research Præbel, Kim Knudsen, Rune Siwertsson, Anna Karhunen, Markku Kahilainen, Kimmo K Ovaskainen, Otso Østbye, Kjartan Peruzzi, Stefano Fevolden, Svein-Erik Amundsen, Per-Arne Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
topic_facet |
Original Research |
description |
Understanding how a monophyletic lineage of a species diverges into several adaptive forms has received increased attention in recent years, but the underlying mechanisms in this process are still under debate. Postglacial fishes are excellent model organisms for exploring this process, especially the initial stages of ecological speciation, as postglacial lakes represent replicated discrete environments with variation in available niches. Here, we combine data of niche utilization, trophic morphology, and 17 microsatellite loci to investigate the diversification process of three sympatric European whitefish morphs from three northern Fennoscandian lakes. The morphological divergence in the gill raker number among the whitefish morphs was related to the utilization of different trophic niches and was associated with reproductive isolation within and across lakes. The intralacustrine comparison of whitefish morphs showed that these systems represent two levels of adaptive divergence: (1) a consistent littoral–pelagic resource axis; and (2) a more variable littoral–profundal resource axis. The results also indicate that the profundal whitefish morph has diverged repeatedly from the ancestral littoral whitefish morph in sympatry in two different watercourses. In contrast, all the analyses performed revealed clustering of the pelagic whitefish morphs across lakes suggesting parallel postglacial immigration with the littoral whitefish morph into each lake. Finally, the analyses strongly suggested that the trophic adaptive trait, number of gill rakers, was under diversifying selection in the different whitefish morphs. Together, the results support a complex evolutionary scenario where ecological speciation acts, but where both allopatric (colonization history) and sympatric (within watercourse divergence) processes are involved. |
format |
Text |
author |
Præbel, Kim Knudsen, Rune Siwertsson, Anna Karhunen, Markku Kahilainen, Kimmo K Ovaskainen, Otso Østbye, Kjartan Peruzzi, Stefano Fevolden, Svein-Erik Amundsen, Per-Arne |
author_facet |
Præbel, Kim Knudsen, Rune Siwertsson, Anna Karhunen, Markku Kahilainen, Kimmo K Ovaskainen, Otso Østbye, Kjartan Peruzzi, Stefano Fevolden, Svein-Erik Amundsen, Per-Arne |
author_sort |
Præbel, Kim |
title |
Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
title_short |
Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
title_full |
Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
title_fullStr |
Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
title_full_unstemmed |
Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
title_sort |
ecological speciation in postglacial european whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats |
publisher |
Blackwell Publishing Ltd |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892361 http://www.ncbi.nlm.nih.gov/pubmed/24455129 https://doi.org/10.1002/ece3.867 |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892361 http://www.ncbi.nlm.nih.gov/pubmed/24455129 http://dx.doi.org/10.1002/ece3.867 |
op_rights |
© 2013 Published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.867 |
container_title |
Ecology and Evolution |
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3 |
container_issue |
15 |
container_start_page |
4970 |
op_container_end_page |
4986 |
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1765998668602671104 |