Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen

14 Páginas ; 5 Figuras ; 4 Tablas ; 1 Apéndice

Detalhes bibliográficos
Autores: Calderón, I., Palacín, Cruz, Turon, Xavier
Formato: artículo
Fecha de publicación:2009
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/38784
Acesso em linha:http://hdl.handle.net/10261/38784
Access Level:acceso abierto
Palavra-chave:Sea urchins
Lividus
Cohorts
Effective population size
Microsatellite loci
Paracentrotus
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spelling Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern MediterranenCalderón, I.Palacín, CruzTuron, XavierSea urchinsLividusCohortsEffective population sizeMicrosatellite lociParacentrotus14 Páginas ; 5 Figuras ; 4 Tablas ; 1 ApéndiceTemporalvariabilitywasstudiedinthecommonseaurchinParacentrotuslividusthroughthe analysis of the genetic composition of three yearly cohorts sampled over two consecutive springsinalocalityinnorthwesternMediterranean.Individualswereagedusinggrowthring patterns observed in tests and samples were genotyped for five microsatellite loci. No reduction of genetic diversitywasobserved relative to asampleof the adult populationfrom the same location or within cohorts across years. FST and AMOVA results indicated that the differentiation between cohorts is rather shallow and not significant, as most variability is found within cohorts and within individuals. This mild differentiation translated into estimates of effective population size of 90–100 individuals. When the observed excess of homozygoteswastakenintoaccount,theestimateoftheaveragenumberofbreedersincreased to c. 300 individuals. Given our restricted sampling area and the known small-scale heterogeneity in recruitment in this species, our results suggest that at stretches of a few kilometresofshoreline,largenumbersofprogenitorsarelikelytocontributetothelarvalpool at each reproduction event. Intercohort variation in our samples is six times smaller than spatial variation between adults of four localities in the western Mediterranean.Ourresults indicatethat,notwithstandingthestochasticeventsthattakeplaceduringthelongplanktonic phase and during the settlement and recruitment processes, reproductive success in this species is high enough to produce cohorts genetically diverse and with little differentiation between them. Further research is needed before the link between genetic structure and underlying physical and biological processes can be well established.This research was funded by projects 119/2003 of the Spanish Network of National Parks and CTM2007-66635 of the Spanish Ministry of Science and Innovation.Peer reviewedWiley-Blackwell201120112009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/38784reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1365-294X.2009.04239.xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/387842026-05-22T06:33:51Z
dc.title.none.fl_str_mv Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
title Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
spellingShingle Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
Calderón, I.
Sea urchins
Lividus
Cohorts
Effective population size
Microsatellite loci
Paracentrotus
title_short Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
title_full Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
title_fullStr Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
title_full_unstemmed Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
title_sort Microsatellite markers reveal shallow genetic differentiation between cohorts of the common sea urchin Paracentrotus lividus (Lamarck) in northwestern Mediterranen
dc.creator.none.fl_str_mv Calderón, I.
Palacín, Cruz
Turon, Xavier
author Calderón, I.
author_facet Calderón, I.
Palacín, Cruz
Turon, Xavier
author_role author
author2 Palacín, Cruz
Turon, Xavier
author2_role author
author
dc.subject.none.fl_str_mv Sea urchins
Lividus
Cohorts
Effective population size
Microsatellite loci
Paracentrotus
topic Sea urchins
Lividus
Cohorts
Effective population size
Microsatellite loci
Paracentrotus
description 14 Páginas ; 5 Figuras ; 4 Tablas ; 1 Apéndice
publishDate 2009
dc.date.none.fl_str_mv 2009
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/38784
url http://hdl.handle.net/10261/38784
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1365-294X.2009.04239.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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