Systematics of Alloteuthis (Cephalopoda:Loliginidae) based on molecular and morphometric data

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dc.contributor.authorAnderson, Frank E.
dc.contributor.authorPilsits, Adria
dc.contributor.authorClutts, Stephanie
dc.contributor.authorLaptikhovsky, Vladimir
dc.contributor.authorBello, Giambattista
dc.contributor.authorBalguerias, Eduardo
dc.contributor.authorLipinski, Marek
dc.contributor.authorNigmatulin, Chingis
dc.contributor.authorPereira, Joao M. F.
dc.contributor.authorPiatkowski, Uwe
dc.contributor.authorRobin, Jean-Paul
dc.contributor.authorSalman, Alp
dc.contributor.authorTasende, Manuel G.
dc.date.accessioned2019-10-27T20:23:25Z
dc.date.available2019-10-27T20:23:25Z
dc.date.issued2008
dc.departmentEge Üniversitesien_US
dc.description.abstractAlloteuthis is a group of small, slender loliginid squids of minor fisheries importance. There are three nominal Alloteuthis species-A. media (Linnaeus), A. subulata (Lamarck) and A. africana Adam. Two of these species (A. media and A. subulata) have largely overlapping ranges in the Mediterranean and northeastern Atlantic, while A. africana is found along the west coast of Africa. Despite the low level of species diversity, Alloteuthis taxonomy and systematics are confused, and assignment of specimens to species can be difficult. To clarify Alloteuthis systematics, we gathered morphometric data and DNA sequence data from two mitochondrial loci and a nuclear locus from Alloteuthis specimens collected from several localities. Analyses of the morphometric data suggest that head width is the main variable allowing separation of A. africana from the other two species, and central club sucker size separates A. media from A. subulata. One easily diagnosable character often used to distinguish Alloteuthis species-relative fin length-appears to be of little taxonomic value. Only three specimens assignable to A. subulata both morphologically and genetically were found, all from the Adriatic; possible reasons for this apparent rarity are discussed. Gene tree parsimony and coalescent-based methods were used to estimate species relationships from the molecular data, and both supported a sister-species relationship between A. media and A. subulata. Analyses of molecular variation (AMOVA's) revealed significant genetic differentiation between Atlantic and Mediterranean A. media. This study highlights the importance of 1) sampling multiple individuals, locations and loci for species-level phylogenetic studies, 2) using morphometric analyses to reveal taxonomically meaningful morphological characters and 3) accounting for the stochastic nature of the coalescent process when estimating species phylogenies for closely related taxa. (c) 2008 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipSIUC REACH (Research-Enriched Academic Challenge) Award; National Science FoundationNational Science Foundation (NSF) [DEB-0235794]en_US
dc.description.sponsorshipWe would like to thank Alonso J. Cordoba and Mike Venarsky for their help with generating the sequence data, Peter Foster and the Natural History Museum (London) for use of computational facilities, James Degnan and Liang Liu for help with their COAL and BEST software packages, respectively, and the SIUC Evolution Discussion Group for tolerating FEA's recent obsession with inferring species trees from multilocus genetic data and for providing some food for thought as these data were being analyzed. We would also like to thank the members of the UTPB (Xunta de Galicia) for their help in collection of the Galician samples, and Sigurd v. Boletzky for his very helpful contribution of specimens from the western Mediterranean. This research was supported by an SIUC REACH (Research-Enriched Academic Challenge) Award to AP and a grant from the National Science Foundation (DEB-0235794) to FEA. [SS]en_US
dc.identifier.doi10.1016/j.jembe.2008.07.026
dc.identifier.endpage109en_US
dc.identifier.issn0022-0981
dc.identifier.issn1879-1697
dc.identifier.issn0022-0981en_US
dc.identifier.issn1879-1697en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage99en_US
dc.identifier.urihttps://doi.org/10.1016/j.jembe.2008.07.026
dc.identifier.urihttps://hdl.handle.net/11454/42016
dc.identifier.volume364en_US
dc.identifier.wosWOS:000260360900005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlloteuthisen_US
dc.subjectAMOVAen_US
dc.subjectLoliginidaeen_US
dc.subjectMANOVAen_US
dc.subjectMolecular phylogeneticsen_US
dc.titleSystematics of Alloteuthis (Cephalopoda:Loliginidae) based on molecular and morphometric dataen_US
dc.typeArticleen_US

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