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Cryptic speciation or global spread? The case of a cosmopolitan marine invertebrate with limited dispersal capabilities

Cryptic speciation or global spread? The case of a cosmopolitan marine invertebrate with limited dispersal capabilities
Cryptic speciation or global spread? The case of a cosmopolitan marine invertebrate with limited dispersal capabilities
The existence of globally-distributed species with low dispersal capabilities is a paradox that has been explained as a result of human-mediated transport and by hidden diversity in the form of unrecognized cryptic species. Both factors are not mutually exclusive, but relatively few studies have demonstrated the presence of both. Here we analyse the genetic patterns of the colonial ascidian Diplosoma listerianum, a species nowadays distributed globally. The study of a fragment of a mitochondrial gene in localities worldwide revealed the existence of multiple cryptic species. In addition, we found a complex geographic structure and multiple clades occurred in sympatry. One of the species showed strong population structure irrespective of geographical distances, which is coherent with stochastic dispersal linked to human transport. The present study shows the complexity of discerning the role of cryptic diversity from human-driven range shifts worldwide, as well as disentangling the effects of natural and artificial dispersal.
invasive species, molecular ecology
1-10
Pérez-Portela, Rocío
2e0bf7a5-091d-4675-8f73-0c1605b42ed9
Arranz, Vanessa
413eb895-6e16-4c8a-8975-b6e03ca1a8fd
Rius, Marc
c4e88345-4b4e-4428-b4b2-37229155f68d
Turon, Xavier
df0c3b35-aba1-4657-add0-3c6aee7c08d3
Pérez-Portela, Rocío
2e0bf7a5-091d-4675-8f73-0c1605b42ed9
Arranz, Vanessa
413eb895-6e16-4c8a-8975-b6e03ca1a8fd
Rius, Marc
c4e88345-4b4e-4428-b4b2-37229155f68d
Turon, Xavier
df0c3b35-aba1-4657-add0-3c6aee7c08d3

Pérez-Portela, Rocío, Arranz, Vanessa, Rius, Marc and Turon, Xavier (2013) Cryptic speciation or global spread? The case of a cosmopolitan marine invertebrate with limited dispersal capabilities Scientific Reports, 3, pp. 1-10. (doi:10.1038/srep03197).

Record type: Article

Abstract

The existence of globally-distributed species with low dispersal capabilities is a paradox that has been explained as a result of human-mediated transport and by hidden diversity in the form of unrecognized cryptic species. Both factors are not mutually exclusive, but relatively few studies have demonstrated the presence of both. Here we analyse the genetic patterns of the colonial ascidian Diplosoma listerianum, a species nowadays distributed globally. The study of a fragment of a mitochondrial gene in localities worldwide revealed the existence of multiple cryptic species. In addition, we found a complex geographic structure and multiple clades occurred in sympatry. One of the species showed strong population structure irrespective of geographical distances, which is coherent with stochastic dispersal linked to human transport. The present study shows the complexity of discerning the role of cryptic diversity from human-driven range shifts worldwide, as well as disentangling the effects of natural and artificial dispersal.

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Published date: 12 November 2013
Keywords: invasive species, molecular ecology
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 359509
URI: http://eprints.soton.ac.uk/id/eprint/359509
PURE UUID: b1efe2bf-ea91-4175-ba85-a96bdd431301

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Date deposited: 01 Nov 2013 16:15
Last modified: 18 Jul 2017 03:20

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Contributors

Author: Rocío Pérez-Portela
Author: Vanessa Arranz
Author: Marc Rius
Author: Xavier Turon

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