Hidden diversity and host specificity in cycliophorans; a phylogeographic analysis along the North Atlantic and Mediterranean Sea
In order to elucidate the evolutionary history and the population structure of the membersof the phylum Cycliophora, which live commensally on three species of lobsters, we studiedsequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242sequences from 16 locations on...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/54ca5950-9e3a-11da-bee9-02004c4f4f50 2023-12-31T10:07:43+01:00 Hidden diversity and host specificity in cycliophorans; a phylogeographic analysis along the North Atlantic and Mediterranean Sea Obst, Matthias Funch, Peter Gonzalo, Giribet 2005 https://pure.au.dk/portal/da/publications/hidden-diversity-and-host-specificity-in-cycliophorans-a-phylogeographic-analysis-along-the-north-atlantic-and-mediterranean-sea(54ca5950-9e3a-11da-bee9-02004c4f4f50).html eng eng https://pure.au.dk/portal/da/publications/hidden-diversity-and-host-specificity-in-cycliophorans-a-phylogeographic-analysis-along-the-north-atlantic-and-mediterranean-sea(54ca5950-9e3a-11da-bee9-02004c4f4f50).html info:eu-repo/semantics/restrictedAccess Obst , M , Funch , P & Gonzalo , G 2005 , ' Hidden diversity and host specificity in cycliophorans; a phylogeographic analysis along the North Atlantic and Mediterranean Sea ' , Molecular Ecology , vol. 14 , pp. 4427-4440 . Homarus Nephrops phylogeography Pleistocene Symbion americanus Symbion pandora article 2005 ftuniaarhuspubl 2023-12-06T23:58:38Z In order to elucidate the evolutionary history and the population structure of the membersof the phylum Cycliophora, which live commensally on three species of lobsters, we studiedsequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242sequences from 16 locations on both coasts of the North Atlantic, including the North Seaand the Mediterranean, were analysed, revealing 28 haplotypes, with a maximum sequencedivergence of 16.6%. Total genetic diversity was high ( h = 0.8322, π π = 0.0898), as it was forthe commensals on Homarus americanus (17 haplotypes, h = 0.7506, π π = 0.0504). However, itwas low for commensals on Nephrops norvegicus (6 haplotypes, h = 0.3899, π π = 0.0035), andintermediate for cycliophorans on Homarus gammarus (5 haplotypes, h = 0.3020, π π = 0.0140).Although two of the host lobsters co-inhabit the coastal waters of Europe, a strong geneticstructure (78.45% of the observed genetic variation) was detected among populations on allhost species, indicating the existence of a reproductively isolated species on each lobster.In addition, genetic structure over long distances exists among populations on each hostspecies. Such patterns can be explained by the limited dispersal ability of the cycliophoranchordoid larva. Demographic and phylogenetic analyses suggest old and possibly crypticpopulations present on H. americanus and H. gammarus , while the latter may have experiencedrecent bottlenecks, perhaps during Pleistocene glaciations. Populations on N. norvegicus appear to be of recent origin. Article in Journal/Newspaper Homarus gammarus North Atlantic Aarhus University: Research |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Homarus Nephrops phylogeography Pleistocene Symbion americanus Symbion pandora |
spellingShingle |
Homarus Nephrops phylogeography Pleistocene Symbion americanus Symbion pandora Obst, Matthias Funch, Peter Gonzalo, Giribet Hidden diversity and host specificity in cycliophorans; a phylogeographic analysis along the North Atlantic and Mediterranean Sea |
topic_facet |
Homarus Nephrops phylogeography Pleistocene Symbion americanus Symbion pandora |
description |
In order to elucidate the evolutionary history and the population structure of the membersof the phylum Cycliophora, which live commensally on three species of lobsters, we studiedsequence variation in the mitochondrial gene cyctochrome c oxidase subunit I. Overall 242sequences from 16 locations on both coasts of the North Atlantic, including the North Seaand the Mediterranean, were analysed, revealing 28 haplotypes, with a maximum sequencedivergence of 16.6%. Total genetic diversity was high ( h = 0.8322, π π = 0.0898), as it was forthe commensals on Homarus americanus (17 haplotypes, h = 0.7506, π π = 0.0504). However, itwas low for commensals on Nephrops norvegicus (6 haplotypes, h = 0.3899, π π = 0.0035), andintermediate for cycliophorans on Homarus gammarus (5 haplotypes, h = 0.3020, π π = 0.0140).Although two of the host lobsters co-inhabit the coastal waters of Europe, a strong geneticstructure (78.45% of the observed genetic variation) was detected among populations on allhost species, indicating the existence of a reproductively isolated species on each lobster.In addition, genetic structure over long distances exists among populations on each hostspecies. Such patterns can be explained by the limited dispersal ability of the cycliophoranchordoid larva. Demographic and phylogenetic analyses suggest old and possibly crypticpopulations present on H. americanus and H. gammarus , while the latter may have experiencedrecent 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 Gonzalo, Giribet |
author_facet |
Obst, Matthias Funch, Peter Gonzalo, Giribet |
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 |
publishDate |
2005 |
url |
https://pure.au.dk/portal/da/publications/hidden-diversity-and-host-specificity-in-cycliophorans-a-phylogeographic-analysis-along-the-north-atlantic-and-mediterranean-sea(54ca5950-9e3a-11da-bee9-02004c4f4f50).html |
genre |
Homarus gammarus North Atlantic |
genre_facet |
Homarus gammarus North Atlantic |
op_source |
Obst , M , Funch , P & Gonzalo , G 2005 , ' Hidden diversity and host specificity in cycliophorans; a phylogeographic analysis along the North Atlantic and Mediterranean Sea ' , Molecular Ecology , vol. 14 , pp. 4427-4440 . |
op_relation |
https://pure.au.dk/portal/da/publications/hidden-diversity-and-host-specificity-in-cycliophorans-a-phylogeographic-analysis-along-the-north-atlantic-and-mediterranean-sea(54ca5950-9e3a-11da-bee9-02004c4f4f50).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1786840174427111424 |