Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea
Abstract In order to elucidate the evolutionary history and the population structure of the members of the phylum Cycliophora, which live commensally on three species of lobsters, we studied sequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242 sequences from 16 l...
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crwiley:10.1111/j.1365-294x.2005.02752.x 2024-06-02T08:07:51+00:00 Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea OBST, MATTHIAS FUNCH, PETER GIRIBET, GONZALO 2005 http://dx.doi.org/10.1111/j.1365-294x.2005.02752.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02752.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02752.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 14, issue 14, page 4427-4440 ISSN 0962-1083 1365-294X journal-article 2005 crwiley https://doi.org/10.1111/j.1365-294x.2005.02752.x 2024-05-03T10:57:16Z Abstract In order to elucidate the evolutionary history and the population structure of the members of the phylum Cycliophora, which live commensally on three species of lobsters, we studied sequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242 sequences from 16 locations on both coasts of the North Atlantic, including the North Sea and the Mediterranean, were analysed, revealing 28 haplotypes, with a maximum sequence divergence of 16.6%. Total genetic diversity was high ( h = 0.8322, π = 0.0898), as it was for the commensals on Homarus americanus (17 haplotypes, h = 0.7506, π = 0.0504). However, it was low for commensals on Nephrops norvegicus (6 haplotypes, h = 0.3899, π = 0.0035), and intermediate for cycliophorans on Homarus gammarus (5 haplotypes, h = 0.3020, π = 0.0140). Although two of the host lobsters co‐inhabit the coastal waters of Europe, a strong genetic structure (78.45% of the observed genetic variation) was detected among populations on all host species, indicating the existence of a reproductively isolated species on each lobster. In addition, genetic structure over long distances exists among populations on each host species. Such patterns can be explained by the limited dispersal ability of the cycliophoran chordoid larva. Demographic and phylogenetic analyses suggest old and possibly cryptic populations present on H. americanus and H. gammarus , while the latter may have experienced recent bottlenecks, perhaps during Pleistocene glaciations. Populations on N. norvegicus appear to be of recent origin. Article in Journal/Newspaper Homarus gammarus North Atlantic Wiley Online Library Molecular Ecology 14 14 4427 4440 |
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Wiley Online Library |
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English |
description |
Abstract In order to elucidate the evolutionary history and the population structure of the members of the phylum Cycliophora, which live commensally on three species of lobsters, we studied sequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242 sequences from 16 locations on both coasts of the North Atlantic, including the North Sea and the Mediterranean, were analysed, revealing 28 haplotypes, with a maximum sequence divergence of 16.6%. Total genetic diversity was high ( h = 0.8322, π = 0.0898), as it was for the commensals on Homarus americanus (17 haplotypes, h = 0.7506, π = 0.0504). However, it was low for commensals on Nephrops norvegicus (6 haplotypes, h = 0.3899, π = 0.0035), and intermediate for cycliophorans on Homarus gammarus (5 haplotypes, h = 0.3020, π = 0.0140). Although two of the host lobsters co‐inhabit the coastal waters of Europe, a strong genetic structure (78.45% of the observed genetic variation) was detected among populations on all host species, indicating the existence of a reproductively isolated species on each lobster. In addition, genetic structure over long distances exists among populations on each host species. Such patterns can be explained by the limited dispersal ability of the cycliophoran chordoid larva. Demographic and phylogenetic analyses suggest old and possibly cryptic populations present on H. americanus and H. gammarus , while the latter may have experienced recent bottlenecks, perhaps during Pleistocene glaciations. Populations on N. norvegicus appear to be of recent origin. |
format |
Article in Journal/Newspaper |
author |
OBST, MATTHIAS FUNCH, PETER GIRIBET, GONZALO |
spellingShingle |
OBST, MATTHIAS FUNCH, PETER GIRIBET, GONZALO Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
author_facet |
OBST, MATTHIAS FUNCH, PETER GIRIBET, GONZALO |
author_sort |
OBST, MATTHIAS |
title |
Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
title_short |
Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
title_full |
Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
title_fullStr |
Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
title_full_unstemmed |
Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
title_sort |
hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the north atlantic and mediterranean sea |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2005.02752.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2005.02752.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2005.02752.x |
genre |
Homarus gammarus North Atlantic |
genre_facet |
Homarus gammarus North Atlantic |
op_source |
Molecular Ecology volume 14, issue 14, page 4427-4440 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-294x.2005.02752.x |
container_title |
Molecular Ecology |
container_volume |
14 |
container_issue |
14 |
container_start_page |
4427 |
op_container_end_page |
4440 |
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1800752982339354624 |