Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic
Monocelis lineata is a complex of cryptic species (three in the Mediterranean and one in the Atlantic) widespread in midlittoral habitats. Throughout the range, populations with or without an ocular pigmented shield are found. We investigated the genetic structure of the North-East Atlantic populati...
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ftunicagliariris:oai:iris.unica.it:11584/254036 2024-04-21T08:08:15+00:00 Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic CASU, Marco SANNA, Daria COSSU, Piero LAI, Tiziana FRANCALACCI, Paolo CURINI GALLETTI, Marco Casu, Marco Sanna, Daria Cossu, Piero Lai, Tiziana Francalacci, Paolo CURINI GALLETTI, Marco 2011 http://hdl.handle.net/11584/254036 https://doi.org/10.1111/j.1095-8312.2011.01630.x eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000289642500009 volume:103 issue:1 firstpage:117 lastpage:135 numberofpages:19 journal:BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY http://hdl.handle.net/11584/254036 doi:10.1111/j.1095-8312.2011.01630.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79954619892 info:eu-repo/semantics/closedAccess Glacial refugia Incipient sympatric speciation Morphological polymorphism MtDNA Nuclear DNA Secondary contact Ecology evolution behavior and systematics info:eu-repo/semantics/article 2011 ftunicagliariris https://doi.org/10.1111/j.1095-8312.2011.01630.x 2024-03-25T16:13:06Z Monocelis lineata is a complex of cryptic species (three in the Mediterranean and one in the Atlantic) widespread in midlittoral habitats. Throughout the range, populations with or without an ocular pigmented shield are found. We investigated the genetic structure of the North-East Atlantic populations with the aim of shedding light on their phylogeography and reconstructing possible patterns of recolonization after the Würmian glaciation. Fourteen samples were investigated using cytochrome c oxidase subunit I (COI) and 13 by inter-simple sequence repeats (ISSRs). COI did not exhibit a clear pattern of decreased genetic diversity along a latitudinal gradient. Populations from Ferrol (Spain), Doolin (Ireland), and Helsingør (Denmark) showed a higher genetic variability, whereas a reduction in the number of haplotypes was found at the northernmost edge of the distribution and in northern Ireland and Scotland. Two genetically differentiated areas (southern Europe and south-western Ireland versus northern Atlantic) were revealed by ISSR data. The results obtained provided evidence of three refugia (Iberian Peninsula, south-western Ireland, and North Sea), and the occurrence of secondary contacts that shaped the genetic variability of some of the populations examined. Two different recolonization pathways of north-western Europe during the post-Würmian glaciations have been detected. Furthermore, ISSR analysis provided evidence of genetic divergence among populations with and without pigmented eyespot, suggesting the action of ecological differentiation. Article in Journal/Newspaper North East Atlantic Università degli Studi di Cagliari: UNICA IRIS Biological Journal of the Linnean Society 103 1 117 135 |
institution |
Open Polar |
collection |
Università degli Studi di Cagliari: UNICA IRIS |
op_collection_id |
ftunicagliariris |
language |
English |
topic |
Glacial refugia Incipient sympatric speciation Morphological polymorphism MtDNA Nuclear DNA Secondary contact Ecology evolution behavior and systematics |
spellingShingle |
Glacial refugia Incipient sympatric speciation Morphological polymorphism MtDNA Nuclear DNA Secondary contact Ecology evolution behavior and systematics CASU, Marco SANNA, Daria COSSU, Piero LAI, Tiziana FRANCALACCI, Paolo CURINI GALLETTI, Marco Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
topic_facet |
Glacial refugia Incipient sympatric speciation Morphological polymorphism MtDNA Nuclear DNA Secondary contact Ecology evolution behavior and systematics |
description |
Monocelis lineata is a complex of cryptic species (three in the Mediterranean and one in the Atlantic) widespread in midlittoral habitats. Throughout the range, populations with or without an ocular pigmented shield are found. We investigated the genetic structure of the North-East Atlantic populations with the aim of shedding light on their phylogeography and reconstructing possible patterns of recolonization after the Würmian glaciation. Fourteen samples were investigated using cytochrome c oxidase subunit I (COI) and 13 by inter-simple sequence repeats (ISSRs). COI did not exhibit a clear pattern of decreased genetic diversity along a latitudinal gradient. Populations from Ferrol (Spain), Doolin (Ireland), and Helsingør (Denmark) showed a higher genetic variability, whereas a reduction in the number of haplotypes was found at the northernmost edge of the distribution and in northern Ireland and Scotland. Two genetically differentiated areas (southern Europe and south-western Ireland versus northern Atlantic) were revealed by ISSR data. The results obtained provided evidence of three refugia (Iberian Peninsula, south-western Ireland, and North Sea), and the occurrence of secondary contacts that shaped the genetic variability of some of the populations examined. Two different recolonization pathways of north-western Europe during the post-Würmian glaciations have been detected. Furthermore, ISSR analysis provided evidence of genetic divergence among populations with and without pigmented eyespot, suggesting the action of ecological differentiation. |
author2 |
Casu, Marco Sanna, Daria Cossu, Piero Lai, Tiziana Francalacci, Paolo CURINI GALLETTI, Marco |
format |
Article in Journal/Newspaper |
author |
CASU, Marco SANNA, Daria COSSU, Piero LAI, Tiziana FRANCALACCI, Paolo CURINI GALLETTI, Marco |
author_facet |
CASU, Marco SANNA, Daria COSSU, Piero LAI, Tiziana FRANCALACCI, Paolo CURINI GALLETTI, Marco |
author_sort |
CASU, Marco |
title |
Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
title_short |
Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
title_full |
Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
title_fullStr |
Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
title_full_unstemmed |
Molecular phylogeography of the microturbellarian Monocelis lineata (Platyhelminthes: Proseriata) in the North-East Atlantic |
title_sort |
molecular phylogeography of the microturbellarian monocelis lineata (platyhelminthes: proseriata) in the north-east atlantic |
publishDate |
2011 |
url |
http://hdl.handle.net/11584/254036 https://doi.org/10.1111/j.1095-8312.2011.01630.x |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000289642500009 volume:103 issue:1 firstpage:117 lastpage:135 numberofpages:19 journal:BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY http://hdl.handle.net/11584/254036 doi:10.1111/j.1095-8312.2011.01630.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79954619892 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1095-8312.2011.01630.x |
container_title |
Biological Journal of the Linnean Society |
container_volume |
103 |
container_issue |
1 |
container_start_page |
117 |
op_container_end_page |
135 |
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