Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe
Pérez‐Portela, R., Almada, V. & Turon, X. (2012). Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe. — Zoologica Scripta , 00 , 000–000. The development of molecular techniques has led to the detection of numerous cases of cryptic speciation wit...
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crwiley:10.1111/j.1463-6409.2012.00573.x 2024-04-28T08:31:26+00:00 Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe Pérez‐Portela, Rocío Almada, Vitor Turon, Xavier 2012 http://dx.doi.org/10.1111/j.1463-6409.2012.00573.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-6409.2012.00573.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-6409.2012.00573.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Zoologica Scripta volume 42, issue 2, page 151-169 ISSN 0300-3256 1463-6409 Genetics Molecular Biology Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2012 crwiley https://doi.org/10.1111/j.1463-6409.2012.00573.x 2024-04-08T06:55:28Z Pérez‐Portela, R., Almada, V. & Turon, X. (2012). Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe. — Zoologica Scripta , 00 , 000–000. The development of molecular techniques has led to the detection of numerous cases of cryptic speciation within widely distributed marine invertebrate species and important taxonomic revisions in all the major marine taxa. In this study, we analysed a controversial marine species complex in the genus Ophiothrix , a widespread taxon in European waters traditionally assigned to two nominal species, Ophiothrix fragilis and O. quinquemaculata. These species are important components of the rocky shores and deep marine benthos along the North Atlantic and Mediterranean littoral. Their status (including variants of both species) has remained contentious due to overlapping variability in morphological characters. In this study, we analysed the genetic and morphological differences of Ophiothrix lineages along the Atlantic and Mediterranean coasts. We also assessed population genetic structure in the Atlantic and Mediterranean basins by sequencing two mitochondrial genes, the 16S rRNA gene and COI gene, of 221 specimens from 13 locations. Phylogenetic analyses demonstrated the existence of two genetically distinct lineages, attributable to two different species although unrelated to previous taxonomic distinctions. Morphological differences could also be detected between these lineages. Samples from the Northeast Atlantic and one from the deep Mediterranean grouped within Lineage I, whereas Lineage II pooled together the southern Atlantic and rocky shallow Mediterranean samples. In the northern region of the Iberian Peninsula and at a deep locality in the Mediterranean, both lineages overlap. Speciation processes likely happened during the Mio–Pliocene transition (about 4.8–7.5 million years ago), when marine‐level oscillations led to the blockage of major marine corridors in Europe and promoted genetic isolation by vicariance. ... Article in Journal/Newspaper North Atlantic Northeast Atlantic Wiley Online Library Zoologica Scripta 42 2 151 169 |
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English |
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Genetics Molecular Biology Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Genetics Molecular Biology Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Pérez‐Portela, Rocío Almada, Vitor Turon, Xavier Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
topic_facet |
Genetics Molecular Biology Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Pérez‐Portela, R., Almada, V. & Turon, X. (2012). Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe. — Zoologica Scripta , 00 , 000–000. The development of molecular techniques has led to the detection of numerous cases of cryptic speciation within widely distributed marine invertebrate species and important taxonomic revisions in all the major marine taxa. In this study, we analysed a controversial marine species complex in the genus Ophiothrix , a widespread taxon in European waters traditionally assigned to two nominal species, Ophiothrix fragilis and O. quinquemaculata. These species are important components of the rocky shores and deep marine benthos along the North Atlantic and Mediterranean littoral. Their status (including variants of both species) has remained contentious due to overlapping variability in morphological characters. In this study, we analysed the genetic and morphological differences of Ophiothrix lineages along the Atlantic and Mediterranean coasts. We also assessed population genetic structure in the Atlantic and Mediterranean basins by sequencing two mitochondrial genes, the 16S rRNA gene and COI gene, of 221 specimens from 13 locations. Phylogenetic analyses demonstrated the existence of two genetically distinct lineages, attributable to two different species although unrelated to previous taxonomic distinctions. Morphological differences could also be detected between these lineages. Samples from the Northeast Atlantic and one from the deep Mediterranean grouped within Lineage I, whereas Lineage II pooled together the southern Atlantic and rocky shallow Mediterranean samples. In the northern region of the Iberian Peninsula and at a deep locality in the Mediterranean, both lineages overlap. Speciation processes likely happened during the Mio–Pliocene transition (about 4.8–7.5 million years ago), when marine‐level oscillations led to the blockage of major marine corridors in Europe and promoted genetic isolation by vicariance. ... |
format |
Article in Journal/Newspaper |
author |
Pérez‐Portela, Rocío Almada, Vitor Turon, Xavier |
author_facet |
Pérez‐Portela, Rocío Almada, Vitor Turon, Xavier |
author_sort |
Pérez‐Portela, Rocío |
title |
Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
title_short |
Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
title_full |
Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
title_fullStr |
Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
title_full_unstemmed |
Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe |
title_sort |
cryptic speciation and genetic structure of widely distributed brittle stars (ophiuroidea) in europe |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1463-6409.2012.00573.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-6409.2012.00573.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-6409.2012.00573.x |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_source |
Zoologica Scripta volume 42, issue 2, page 151-169 ISSN 0300-3256 1463-6409 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1463-6409.2012.00573.x |
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Zoologica Scripta |
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42 |
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2 |
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151 |
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169 |
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1797588973639434240 |