15
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from southeastern Brazil, corroborated by morphological and molecular data

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Listrura costai, new species, is described from small streams in a swampy coastal plain in the rio Jurumirim basin, Angra dos Reis Municipality, Rio de Janeiro State, southeastern Brazil. The new species is morphologically very similar to L. nematopteryx and L. picinguabae, all possessing only one long pectoral-fin ray. It differs from its congeners by possessing an autapomorphic character: first hypobranchial with an anterior process (vs. process absent). Other features such as coloration, numbers of opercular and interopercular odontodes, number of anal-fin rays, head length, and shape of some bone structures help to distinguish the new species from L. nematopteryx and L. picinguabae. Molecular analyses using partial sequences of the mitochondrial DNA genes cytochrome oxidase c subunit 1 and cytochrome b from the new species and morphologically similar species are provided. The results about both molecular markers corroborate the validity of the new species by significant genetic distance values between it and congeneric species, and by its phylogenetic position in the hypotheses performed by maximum-parsimony method.

          Translated abstract

          Listrura costai, espécie nova, é descrita de exemplares obtidos em pequenos córregos restritos à bacia do rio Jurumirim, município de Angra dos Reis, estado do Rio de Janeiro, sudeste do Brasil. A espécie nova é morfologicamente muito similar a L. nematopteryx e L. picinguabae, todas possuindo um único e longo raio na nadadeira peitoral. Difere-se dos seus congêneres por possuir um caráter autapomórfico: primeiro hipobranquial com um processo anterior (vs. processo ausente). Outras características como coloração, número de odontóides operculares e interoperculares, número de raios na nadadeira anal, e forma de algumas estruturas ósseas ajudam a diferenciar a nova espécie de L. nematopteryx e L. picinguabae. Análises moleculares usando sequências parciais dos genes mitocondriais citocromo oxidase c subunidade 1 e citocromo b da nova espécie e espécies morfologicamente similares são apresentadas. Os resultados de ambos os marcadores moleculares corroboram a validade da espécie nova pelos valores significativos das distâncias genéticas entre esta e as espécies congenéricas, e por sua posição filogenética nas hipóteses feitas pelo o método de máxima parcimônia

          Related collections

          Most cited references 32

          • Record: found
          • Abstract: not found
          • Article: not found

          THE EVOLUTION OF STRONG REPRODUCTIVE ISOLATION

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            IUCN Red list categories and criteria: version 3.1. IUCN Species Survival Commission

            (2001)
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              A new sarcoglanidine catfish, phylogeny of its subfamily, and an appraisal of the phyletic status of the Trichomycterinae (Teleostei, Trichomycteridae)

                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                ni
                Neotropical Ichthyology
                Neotrop. ichthyol.
                Sociedade Brasileira de Ictiologia (Maringá )
                1982-0224
                September 2012
                : 10
                : 3
                : 527-538
                Affiliations
                [1 ] Universidade Federal do Rio de Janeiro Brazil
                [2 ] Universidade Federal do Rio de Janeiro Brazil
                Article
                S1679-62252012000300005
                10.1590/S1679-62252012000300005
                Product
                Product Information: website
                Categories
                ZOOLOGY

                Animal science & Zoology

                Atlantic rain forest, Genetic distance, Mitochondrial DNA, Taxonomy

                Comments

                Comment on this article