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Stochasticity in space, persistence in time: genetic heterogeneity in harbour populations of the introduced ascidian Styela plicata

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dc.contributor Biodivers Res Inst Irbio
dc.contributor University Of Barcelona
dc.contributor Csic - Centre D'estudis Avancats De Blanes (ceab)
dc.contributor Dept Marine Ecol
dc.contributor Ctr Adv Studies Blanes Ceab Csic
dc.contributor Sustainable Coastal Ecosyst & Ind Trop Australia
dc.contributor University Of North Carolina
dc.contributor Ctr Marine Sci
dc.contributor Dept Biol & Marine Biol
dc.contributor Consejo Superior De Investigaciones Cientificas (csic)
dc.contributor Australian Inst Marine Sci
dc.contributor University Of North Carolina Wilmington
dc.contributor Univ N Carolina
dc.contributor Univ Barcelona
dc.contributor Dept Anim Biol
dc.contributor Australian Institute Of Marine Science
dc.contributor.author TURON, XAVIER
dc.contributor.author PINEDA, MARI-CARMEN
dc.contributor.author LORENTE, BEATRIZ
dc.contributor.author LOPEZ-LEGENTIL, SUSANNA
dc.contributor.author PALACIN, CREU
dc.date.accessioned 2016-07-05T04:46:12Z
dc.date.accessioned 2016-07-05T04:46:12Z
dc.date.accessioned 2017-03-21T01:06:17Z
dc.date.accessioned 2018-11-01T03:08:26Z
dc.date.available 2016-07-05T04:46:12Z
dc.date.available 2017-03-21T01:06:17Z
dc.date.available 2017-03-21T01:06:17Z
dc.date.available 2018-11-01T03:08:26Z
dc.date.issued 2016-06-23
dc.identifier.citation Pineda M, Lorente B, López-Legentil S, Palacín C, Turon X. (2016) Stochasticity in space, persistence in time: genetic heterogeneity in harbour populations of the introduced ascidian Styela plicata. PeerJ 4:e2158 en_US
dc.identifier.issn 2167-8359
dc.identifier.uri http://epubs.aims.gov.au/11068/12801
dc.description.abstract Spatio-temporal changes in genetic structure among populations provide crucial information on the dynamics of secondary spread for introduced marine species. However, temporal components have rarely been taken into consideration when studying the population genetics of non-indigenous species. This study analysed the genetic structure of Styela plicata, a solitary ascidian introduced in harbours and marinas of tropical and temperate waters, across spatial and temporal scales. A fragment of the mitochondrial gene Cytochrome Oxidase subunit I (COI) was sequenced from 395 individuals collected at 9 harbours along the NW Mediterranean coast and adjacent Atlantic waters (> 1,200 km range) at two time points 5 years apart (2009 and 2014). The levels of gene diversity were relatively low for all 9 locations in both years. Analyses of genetic differentiation and distribution of molecular variance revealed strong genetic structure, with significant differences among many populations, but no significant differences among years. A weak and marginally significant correlation between geographic distance and gene differentiation was found. Our results revealed spatial structure and temporal genetic homogeneity in S. plicata, suggesting a limited role of recurrent, vessel-mediated transport of organisms among small to medium-size harbours. Our study area is representative of many highly urbanized coasts with dense harbours. In these environments, the episodic chance arrival of colonisers appears to determine the genetic structure of harbour populations and the genetic composition of these early colonising individuals persists in the respective harbours, at least over moderate time frames (five years) that encompass ca. 20 generations of S. plicata.
dc.description.sponsorship This research has been funded by project CHALLENGEN (CTM2013-48163) of the Spanish Government. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
dc.description.sponsorship This research has been funded by project CHALLENGEN (CTM2013-48163) of the Spanish Government. en_US
dc.description.uri https://peerj.com/articles/2158/ en_US
dc.language English
dc.language.iso en en_US
dc.publisher Peer en_US
dc.relation.ispartof Null
dc.rights Attribution 3.0 Australia *
dc.rights.uri http://creativecommons.org/licenses/by/3.0/au/ *
dc.subject Ship Movements
dc.subject Biological Invasions
dc.subject Spatio-temporal Genetic Structure
dc.subject Science & Technology - Other Topics
dc.subject European Seas
dc.subject Multidisciplinary Sciences
dc.subject Rare Alleles
dc.subject Mediterranean Sea
dc.subject Differentiation
dc.subject Botryllus-schlosseri
dc.subject Ascidians
dc.subject Introduced Species
dc.subject Success
dc.subject F-st
dc.subject Marine Invertebrate
dc.subject Harbours
dc.subject Coi
dc.title Stochasticity in space, persistence in time: genetic heterogeneity in harbour populations of the introduced ascidian Styela plicata
dc.type journal article en_US
dc.identifier.doi 10.7717/peerj.2158
dc.identifier.wos WOS:000378796700006


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