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Genetic diversity and connectivity remain high in Holothuria polii (Delle Chiaje 1823) across a coastal lagoon-open sea environmental gradient

dc.contributor.authorVergara-Chen, Carlos
dc.contributor.authorGonzalez-Wangueemert, Mercedes
dc.contributor.authorMarcos, Concepcion
dc.contributor.authorPerez-Ruzafa, Angel
dc.date.accessioned2016-10-07T10:35:54Z
dc.date.available2016-10-07T10:35:54Z
dc.date.issued2010-08
dc.description.abstractCoastal lagoons represent habitats with widely heterogeneous environmental conditions, particularly as regards salinity and temperature,which fluctuate in both space and time. These characteristics suggest that physical and ecological factors could contribute to the genetic divergence among populations occurring in coastal lagoon and opencoast environments. This study investigates the genetic structure of Holothuria polii at a micro-geographic scale across theMar Menor coastal lagoon and nearbymarine areas, estimating the mitochondrial DNA variation in two gene fragments, cytochrome oxidase I (COI) and 16S rRNA (16S). Dataset of mitochondrial sequences was also used to test the influence of environmental differences between coastal lagoon andmarine waters on population genetic structure. All sampled locations exhibited high levels of haplotype diversity and low values of nucleotide diversity. Both genes showed contrasting signals of genetic differentiation (non-significant differences using COI and slight differences using 16S, which could due to different mutation rates or to differential number of exclusive haplotypes. We detected an excess of recent mutations and exclusive haplotypes, which can be generated as a result of population growth. However, selective processes can be also acting on the gene markers used; highly significant generalized additive models have been obtained considering genetic data from16S gene and independent variables such as temperature and salinity.
dc.identifier.doihttp://dx.doi.org/10.1007/s10709-010-9472-x
dc.identifier.issn0016-6707
dc.identifier.urihttp://hdl.handle.net/10400.1/8715
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Verlag
dc.relation.isbasedonWOS:000281541900009
dc.subjectCoastal lagoon
dc.subjectGene flow
dc.subjectGenetic diversity
dc.subjectHolothuria polii
dc.subjectMitochondrial DNA
dc.subjectSelection
dc.subjectGeneralized additive models (GAMs)
dc.titleGenetic diversity and connectivity remain high in Holothuria polii (Delle Chiaje 1823) across a coastal lagoon-open sea environmental gradient
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage906
oaire.citation.issue8
oaire.citation.startPage895
oaire.citation.titleGenetica
oaire.citation.volume138
person.familyNameGonzalez-Wanguemert
person.givenNameMercedes
person.identifier.orcid0000-0002-0656-358X
person.identifier.ridM-3467-2013
person.identifier.scopus-author-id55898776000
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication480ebbab-0b12-422b-90f4-998970e3aa00
relation.isAuthorOfPublication.latestForDiscovery480ebbab-0b12-422b-90f4-998970e3aa00

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