Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts
Understanding evolutionary patterns is more complex in marine compared to continental species because marine species have high effective population sizes and high levels of dispersal due to an apparent lack of barriers. Moreover, phylogeographical breaks in the marine realm such as the Atlantic-Medi...
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ftunivleuven:oai:lirias.kuleuven.be:123456789/229677 2023-05-15T17:31:36+02:00 Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts Larmuseau, Maarten Van Houdt, Jeroen Guelinckx, Jef Hellemans, Bart Volckaert, Filip 2008-02-29 https://lirias.kuleuven.be/handle/123456789/229677 en eng VLIZ Young Scientists 2008 location:Brugge, Belgium date:29 February 2008 https://lirias.kuleuven.be/handle/123456789/229677 Description (Metadata) only AMa conference_paper 2008 ftunivleuven 2014-03-04T21:12:21Z Understanding evolutionary patterns is more complex in marine compared to continental species because marine species have high effective population sizes and high levels of dispersal due to an apparent lack of barriers. Moreover, phylogeographical breaks in the marine realm such as the Atlantic-Mediterranean transition remain controversial. Therefore a new high-quality phylogeographic analysis was realized for a marine demersal fish, the sand goby Pomatoschistus minutus (Gobiidae, Teleostei). Sand gobies of 12 locations along the full European distribution range were analyzed by sequencing a large fragment of the mitochondrial cytochrome b gene. The phylogenetic results show that P. minutus comprises two deep genealogical lineages, the Mediterranean Sea Clade (MS-Clade) and the Atlantic Ocean Clade (AO-Clade), that date back to the Early Pleistocene (1.6-0.8 MYA). Even though the sand goby occurs only in a few northern locations in the Mediterranean, the MS-Clade contains the highest genetic diversity. The AO-Clade comprises two Evolutionary Significant Units (ESU), one off the Western Iberian Peninsula and the other in the marine systems of the North Atlantic (Bay of Biscay, North Sea, Irish Sea and Baltic Sea). This is consistent with two separate palaeorefugia during the Pleistocene glaciations: the Iberian Peninsula and the Bay of Biscay. Less haplotypes were shared among the marine systems of the North Atlantic, indicating a low present-day gene flow. The network analysis showed a recent radiation in each marine system, even in the northern Baltic Sea where the recolonization of P. minutus occurred only 8000 years ago. This phylogeographic pattern will be compared with putatively adaptive loci in order to study the characteristics of local adaptation in the marine environment. status: published Conference Object North Atlantic KU Leuven: Lirias |
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KU Leuven: Lirias |
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ftunivleuven |
language |
English |
description |
Understanding evolutionary patterns is more complex in marine compared to continental species because marine species have high effective population sizes and high levels of dispersal due to an apparent lack of barriers. Moreover, phylogeographical breaks in the marine realm such as the Atlantic-Mediterranean transition remain controversial. Therefore a new high-quality phylogeographic analysis was realized for a marine demersal fish, the sand goby Pomatoschistus minutus (Gobiidae, Teleostei). Sand gobies of 12 locations along the full European distribution range were analyzed by sequencing a large fragment of the mitochondrial cytochrome b gene. The phylogenetic results show that P. minutus comprises two deep genealogical lineages, the Mediterranean Sea Clade (MS-Clade) and the Atlantic Ocean Clade (AO-Clade), that date back to the Early Pleistocene (1.6-0.8 MYA). Even though the sand goby occurs only in a few northern locations in the Mediterranean, the MS-Clade contains the highest genetic diversity. The AO-Clade comprises two Evolutionary Significant Units (ESU), one off the Western Iberian Peninsula and the other in the marine systems of the North Atlantic (Bay of Biscay, North Sea, Irish Sea and Baltic Sea). This is consistent with two separate palaeorefugia during the Pleistocene glaciations: the Iberian Peninsula and the Bay of Biscay. Less haplotypes were shared among the marine systems of the North Atlantic, indicating a low present-day gene flow. The network analysis showed a recent radiation in each marine system, even in the northern Baltic Sea where the recolonization of P. minutus occurred only 8000 years ago. This phylogeographic pattern will be compared with putatively adaptive loci in order to study the characteristics of local adaptation in the marine environment. status: published |
format |
Conference Object |
author |
Larmuseau, Maarten Van Houdt, Jeroen Guelinckx, Jef Hellemans, Bart Volckaert, Filip |
spellingShingle |
Larmuseau, Maarten Van Houdt, Jeroen Guelinckx, Jef Hellemans, Bart Volckaert, Filip Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
author_facet |
Larmuseau, Maarten Van Houdt, Jeroen Guelinckx, Jef Hellemans, Bart Volckaert, Filip |
author_sort |
Larmuseau, Maarten |
title |
Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
title_short |
Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
title_full |
Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
title_fullStr |
Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
title_full_unstemmed |
Deep genetic divergence and recent radiations in sand goby Pomatoschistus minutus along European coasts |
title_sort |
deep genetic divergence and recent radiations in sand goby pomatoschistus minutus along european coasts |
publishDate |
2008 |
url |
https://lirias.kuleuven.be/handle/123456789/229677 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
VLIZ Young Scientists 2008 location:Brugge, Belgium date:29 February 2008 https://lirias.kuleuven.be/handle/123456789/229677 |
_version_ |
1766129264795582464 |