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      Molecular evidences confirm the taxonomic separation of two sympatric congeneric species (Mollusca, Gastropoda, Neritidae, Neritina)

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          Abstract

          Abstract

          A reliable taxonomy, together with more accurate knowledge of the geographical distribution of species, is a fundamental element for the study of biodiversity. Multiple studies on the gastropod family Neritidae record three species of the genus Neritina in the Brazilian Province: Neritina zebra (Bruguière, 1792), Neritina virginea (Linnaeus, 1758), and Neritina meleagris Lamarck, 1822. While N. zebra has a well-established taxonomic status and geographical distribution, the same cannot be said regarding its congeners. A widely cited reference for the group in Brazil considers N. meleagris a junior synonym of N. virginea . Using a molecular approach (phylogenetic, species delimitation, and statistical parsimony network analyses), based on two mitochondrial markers (COI and 16S), this study investigated if N. virginea and N. meleagris are distinct species. The molecular results confirmed the existence of two strongly supported distinct taxonomic entities in the Brazilian Province, which is consistent with the morphological descriptions previously proposed for N. virginea and N. meleagris . These species occur in sympatry in the intertidal sandstone formations of Northeastern Brazil. Despite the great variation in the colour patterns of the shells, the present study reinforced previous observations that allowed the differentiation of these two species based on these patterns. It also emphasized the importance of the separation of these two clades in future studies, especially those conducted in the Brazilian Province, since these species may cohabit.

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          Taxonomy: impediment or expedient?

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            Species Delimitation--a Geneious plugin for the exploration of species boundaries.

            Species Delimitation is a plugin to the Geneious software to support the exploration of species boundaries in a gene tree. The user assigns taxa to putative species and the plugin computes statistics relating to the probability of the observed monophyly or exclusivity having occurred by chance in a coalescent process. It also assesses the within and between species genetic distances to infer the probability with which members of a putative species might be identified successfully with tree-based methods. © 2010 Blackwell Publishing Ltd.
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              TCS: estimating gene genealogies

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2020
                16 January 2020
                : 904
                : 117-130
                Affiliations
                [1 ] Graduate Program on Marine Tropical Sciences, Instituto de Ciências do Mar -LABOMAR, Universidade Federal do Ceará, Av. da Abolição, 3207, Meireles, CEP: 60165-081, Fortaleza, CE, Brazil
                [2 ] Laboratório de Invertebrados Marinhos do Ceará - LIMCE, Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Rua Campus do Pici, s/n, Bloco 909, Pici, CEP: 60440-900, Fortaleza, CE, Brazil
                [3 ] Marine Vertebrate Evolution and Conservation Lab - EvolVe, Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará, Rua Campus do Pici, s/n, Bloco 909, Pici, CEP: 60440-900, Fortaleza, CE, Brazil
                [4 ] Laboratório de Zoobentos, Instituto de Ciências do Mar - LABOMAR, Universidade Federal do Ceará, Av. da Abolição, 3207, Meireles, CEP: 60165-081, Fortaleza, CE, Brazil
                [5 ] Laboratório de Biologia Recifal - BIOREC, Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, CEP: 05508-120, São Paulo, SP, Brazil
                Author notes
                Corresponding author: Cristiane Xerez Barroso ( cristianexb@ 123456gmail.com )

                Academic editor: T. Backeljau

                Article
                46790
                10.3897/zookeys.904.46790
                6978406
                Cristiane Xerez Barroso, João Eduardo Pereira de Freitas, Helena Matthews-Cascon, Luis Ernesto Arruda Bezerra, Tito Monteiro da Cruz Lotufo

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Short Communication
                Neritidae
                Taxonomy
                Brazil

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