Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic
Abstract Pinpointing processes that structure the geographical distribution of genetic diversity of marine species and lead to speciation is challenging because of the lack of obvious dispersal barriers and the likelihood of substantial (passive) dispersal in oceans. In addition, cryptic radiations...
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crwiley:10.1111/j.1365-294x.2008.03846.x 2024-06-02T08:11:57+00:00 Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic DERYCKE, S. REMERIE, T. BACKELJAU, T. VIERSTRAETE, A. VANFLETEREN, J. VINCX, M. MOENS, T. 2008 http://dx.doi.org/10.1111/j.1365-294x.2008.03846.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2008.03846.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2008.03846.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 17, issue 14, page 3306-3322 ISSN 0962-1083 1365-294X journal-article 2008 crwiley https://doi.org/10.1111/j.1365-294x.2008.03846.x 2024-05-06T07:04:53Z Abstract Pinpointing processes that structure the geographical distribution of genetic diversity of marine species and lead to speciation is challenging because of the lack of obvious dispersal barriers and the likelihood of substantial (passive) dispersal in oceans. In addition, cryptic radiations with sympatric distributions abound in marine species, challenging the allopatric speciation mechanism. Here, we present a phylogeographical study of the marine nematode species complex Rhabditis ( Pellioditis ) marina to investigate processes shaping genetic structure and speciation. Rhabditis ( P .) marina lives on decaying macroalgae in the intertidal, and may therefore disperse over considerable distances. Rhabditis ( P .) marina consists of several cryptic species sympatrically distributed at a local scale. Genetic variation in the COI gene was screened in 1362 specimens from 45 locations around the world. Two nuclear DNA genes (ITS and D2D3) were sequenced to infer phylogenetic species. We found evidence for ten sympatrically distributed cryptic species, seven of which show a strong genetic structuring. A historical signature showed evidence for restricted gene flow with occasional long‐distance dispersal and range expansions pre‐dating the last glacial maximum. Our data also point to a genetic break around the British Isles and a contact zone in the Southern Bight of the North Sea. We provide evidence for the transoceanic distribution of at least one cryptic species (PmIII) and discuss the dispersal capacity of marine nematodes. The allopatric distribution of some intraspecific phylogroups and of closely related cryptic species points to the potential for allopatric speciation in R. ( P .) marina . Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Molecular Ecology 17 14 3306 3322 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Pinpointing processes that structure the geographical distribution of genetic diversity of marine species and lead to speciation is challenging because of the lack of obvious dispersal barriers and the likelihood of substantial (passive) dispersal in oceans. In addition, cryptic radiations with sympatric distributions abound in marine species, challenging the allopatric speciation mechanism. Here, we present a phylogeographical study of the marine nematode species complex Rhabditis ( Pellioditis ) marina to investigate processes shaping genetic structure and speciation. Rhabditis ( P .) marina lives on decaying macroalgae in the intertidal, and may therefore disperse over considerable distances. Rhabditis ( P .) marina consists of several cryptic species sympatrically distributed at a local scale. Genetic variation in the COI gene was screened in 1362 specimens from 45 locations around the world. Two nuclear DNA genes (ITS and D2D3) were sequenced to infer phylogenetic species. We found evidence for ten sympatrically distributed cryptic species, seven of which show a strong genetic structuring. A historical signature showed evidence for restricted gene flow with occasional long‐distance dispersal and range expansions pre‐dating the last glacial maximum. Our data also point to a genetic break around the British Isles and a contact zone in the Southern Bight of the North Sea. We provide evidence for the transoceanic distribution of at least one cryptic species (PmIII) and discuss the dispersal capacity of marine nematodes. The allopatric distribution of some intraspecific phylogroups and of closely related cryptic species points to the potential for allopatric speciation in R. ( P .) marina . |
format |
Article in Journal/Newspaper |
author |
DERYCKE, S. REMERIE, T. BACKELJAU, T. VIERSTRAETE, A. VANFLETEREN, J. VINCX, M. MOENS, T. |
spellingShingle |
DERYCKE, S. REMERIE, T. BACKELJAU, T. VIERSTRAETE, A. VANFLETEREN, J. VINCX, M. MOENS, T. Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
author_facet |
DERYCKE, S. REMERIE, T. BACKELJAU, T. VIERSTRAETE, A. VANFLETEREN, J. VINCX, M. MOENS, T. |
author_sort |
DERYCKE, S. |
title |
Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
title_short |
Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
title_full |
Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
title_fullStr |
Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
title_full_unstemmed |
Phylogeography of the Rhabditis ( Pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast Atlantic |
title_sort |
phylogeography of the rhabditis ( pellioditis) marina species complex: evidence for long‐distance dispersal, and for range expansions and restricted gene flow in the northeast atlantic |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2008.03846.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2008.03846.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2008.03846.x |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Molecular Ecology volume 17, issue 14, page 3306-3322 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-294x.2008.03846.x |
container_title |
Molecular Ecology |
container_volume |
17 |
container_issue |
14 |
container_start_page |
3306 |
op_container_end_page |
3322 |
_version_ |
1800758254218772480 |