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Genetic diversity in two barnacle species, Chthamalus stellatus and Tesseropora atlantica (Crustacea, Cirripedia), with different larval dispersal modes in the archipelago of the Azores

TitleGenetic diversity in two barnacle species, Chthamalus stellatus and Tesseropora atlantica (Crustacea, Cirripedia), with different larval dispersal modes in the archipelago of the Azores
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2009
AuthorsPannacciulli, Federica, Manetti G., and Maltagliati F.
JournalMarine Biology
Volume156
Pagination2441-2450
ISSN00253162
KeywordsAtlantic islands, Atlantic Ocean, Azores, benthos, Chthamalus stellatus, Cirripedia, comparative study, Crustacea, crustacean, estimation method, Eurasia, Europe, genetic structure, Genetic Variation, Invertebrata, larval transport, life history, Macaronesia, marine ecosystem, Pelagic ecosystem, Portugal, Southern Europe, species diversity, Tesseropora, Thoracica
Abstract

ISSRs (Inter Simple Sequence Repeats) were employed to compare the genetic structure of Chthamalus stellatus and Tesseropora atlantica in the Azores. The two barnacles differ as regards life cycle: the former conducting pelagic life for about 22 days, the latter for only 24 h. Thirty individuals of each species were analysed from four locations of three Azorean islands. Five ISSR primers produced, respectively, 117 and 79 polymorphic bands in C. stellatus and T. atlantica. Estimates of among-samples genetic diversity suggested extensive connectivity in the former species and isolation in the latter. AMOVA further supported these results by attributing 2% of genetic variance to the among-islands component of C. stellatus and 30% to T. atlantica. Results are consistent with expectations based on species life history and corroborate the importance of pelagic stages in determining the degree of genetic structuring in benthic marine invertebrates. © Springer-Verlag 2009.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-70350416848&doi=10.1007%2fs00227-009-1269-z&partnerID=40&md5=7f454e1d6793a1b9ebb1906bda84f57e
DOI10.1007/s00227-009-1269-z
Citation KeyPannacciulli20092441