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Patterns of cladogenesis in the venomous marine gastropod genus Conus from the Cape Verde islands

2005Journal article Restricted access
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dc.contributor.authorCunha, R. L.
dc.contributor.authorCastilho, Rita
dc.contributor.authorRuber, L.
dc.contributor.authorZardoya, R.
dc.date.accessioned2014-05-20T12:05:10Z
dc.date.available2014-05-20T12:05:10Z
dc.date.issued2005
dc.date.updated2014-05-16T11:46:41Z
dc.description.abstractIsolated oceanic archipelagos are excellent model systems to study speciation, biogeography, and evolutionary factors underlying the generation of biological diversity. Despite the wealth of studies documenting insular speciation, few of them focused on marine organisms. Here, we reconstruct phylogenetic relationships among species of the marine venomous gastropod genus Conus from the Cape Verde archipelago. This small island chain located in the Central Atlantic hosts 10% of the worldwide species diversity of Conus. Analyses were based on mtDNA sequences, and a novel nuclear marker, a megalin-like protein, member of the low-density lipoprotein receptor gene family. The inferred phylogeny recovered two well-defined clades within Conus. One includes Cape Verde endemic species with larger shells, known as the “venulatus” complex together with C. pulcher from the Canary Islands. The other is composed of Cape Verde endemic and West Africa and Canary Island “small” shelled species. In both clades, nonendemic Conus were resolved as sister groups of the Cape Verde endemics, respectively. Our results indicate that the ancestors of “small” and “large” shelled lineages independently colonized Cape Verde. The resulting biogeographical pattern shows the grouping of most Cape Verde endemics in monophyletic island assemblages. Statistical tests supported a recent radiation event within the “small shell” clade. Using a molecular clock, we estimated that the colonization of the islands by the “small” shelled species occurred relatively close to the origin of the islands whereas the arrival of “large” shelled Conus is more recent. Our results suggest that the main factor responsible for species diversity in the archipelago may be allopatric speciation promoted by the reduced dispersal capacity of nonplanktonic lecithotrophic larvae.por
dc.identifier.citationCunha, R. L.; Castilho, R.; Ruber, L.; Zardoya, R. Patterns of cladogenesis in the venomous marine gastropod genus Conus from the Cape Verde islands, Systematic Biology, 54, 4, 634-650, 2005.por
dc.identifier.doihttp://dx.doi.org/10.1080/106351591007471
dc.identifier.issn1063-5157
dc.identifier.otherAUT: RCA00270;
dc.identifier.urihttp://hdl.handle.net/10400.1/4010
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSociety of Systematic Biologistspor
dc.subjectAllopatrypor
dc.subjectBiogeographypor
dc.subjectConuspor
dc.subjectMolecular clockpor
dc.subjectSpeciationpor
dc.titlePatterns of cladogenesis in the venomous marine gastropod genus Conus from the Cape Verde islandspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage650por
oaire.citation.issue5por
oaire.citation.startPage634por
oaire.citation.titleSystematic Biologypor
oaire.citation.volume54por
person.familyNameCastilho
person.givenNameRita
person.identifier452212
person.identifier.ciencia-id0513-0407-A6C1
person.identifier.orcid0000-0003-0727-3688
person.identifier.ridB-6185-2008
person.identifier.scopus-author-id56271196600
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication051f68ec-18e0-4008-b06d-bf4b996fa098
relation.isAuthorOfPublication.latestForDiscovery051f68ec-18e0-4008-b06d-bf4b996fa098

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