37
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Myxobolus marajoensis sp. n. (Myxosporea: Myxobolidae), parasite of the freshwater catfish Rhamdia quelen from the Brazilian Amazon region Translated title: Myxobolus marajoensis sp. n. (Myxosporea: Myxobolidae), parasita do bagre de água doce Rhamdia quelen da região da Amazônia brasileira

      research-article

      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

          Abstract This study provides morphological and molecular data of a new parasite species found in the muscle layer of the intestinal tract of the South American silver catfish, Rhamdia quelen from Marajó Island region (Pará State, Brazil), an important fishery resource with recognized potential for fish farming. The morphology of these parasites was reanalyzed and phylogenetic analyses were run on their 18S rDNA gene sequences. The spores were morphologically distinct from those of other Myxobolus species described previously. The obtained partial sequence of the 18S rDNA gene sequences of the new species were compared to those of 24 other Myxobolus and Henneguya species available in GenBank. The results of morphological and molecular analyses indicated clearly the existence of a new species, Myxobolus marajoensis sp. n.

          Translated abstract

          Resumo Este estudo fornece dados morfológicos e moleculares de um novo parasita encontrado na parede intestinal do jandiá, Rhamdia quelen coletado na região da ilha do Marajó (Estado do Pará, Brasil), um importante recurso pesqueiro com potencial para aquicultura. Foram realizadas comparações morfológicas deste parasita e análises filogenéticas da região do gene 18S rDNA sequenciada. Os esporos foram morfologicamente distintos das espécies de outros Myxobolus descritos anteriormente. A sequência parcial obtida do gene 18S rDNA da nova espécie foi comparada com outras 24 espécies de Myxobolus e Henneguya retiradas do GenBank. Os resultados de análises morfológica e molecular indicaram claramente a existência de uma nova espécie, Myxobolus marajoensis sp. n.

          Related collections

          Most cited references35

          • Record: found
          • Abstract: not found
          • Book: not found

          Manual of Histologic Staining Methods of the Armed Forces Institute of Pathology

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Multi-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution

            Over half of all vertebrates are “fishes”, which exhibit enormous diversity in morphology, physiology, behavior, reproductive biology, and ecology. Investigation of fundamental areas of vertebrate biology depend critically on a robust phylogeny of fishes, yet evolutionary relationships among the major actinopterygian and sarcopterygian lineages have not been conclusively resolved. Although a consensus phylogeny of teleosts has been emerging recently, it has been based on analyses of various subsets of actinopterygian taxa, but not on a full sample of all bony fishes. Here we conducted a comprehensive phylogenetic study on a broad taxonomic sample of 61 actinopterygian and sarcopterygian lineages (with a chondrichthyan outgroup) using a molecular data set of 21 independent loci. These data yielded a resolved phylogenetic hypothesis for extant Osteichthyes, including 1) reciprocally monophyletic Sarcopterygii and Actinopterygii, as currently understood, with polypteriforms as the first diverging lineage within Actinopterygii; 2) a monophyletic group containing gars and bowfin (= Holostei) as sister group to teleosts; and 3) the earliest diverging lineage among teleosts being Elopomorpha, rather than Osteoglossomorpha. Relaxed-clock dating analysis employing a set of 24 newly applied fossil calibrations reveals divergence times that are more consistent with paleontological estimates than previous studies. Establishing a new phylogenetic pattern with accurate divergence dates for bony fishes illustrates several areas where the fossil record is incomplete and provides critical new insights on diversification of this important vertebrate group.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Synopsis of the species of Myxobolus Butschli, 1882 (Myxozoa: Myxosporea: Myxobolidae).

              A synopsis of 744 nominal species of Myxobolus Butschli, 1882 (Myxozoa, Myxosporea, Myxobolidae) is presented. For each species, the relevant morphometric and morphological data are indicated, as well as the host(s), site(s) of infection within the host and type-locality.
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbpv
                Revista Brasileira de Parasitologia Veterinária
                Rev. Bras. Parasitol. Vet.
                Colégio Brasileiro de Parasitologia Veterinária (Jaboticabal, SP, Brazil )
                0103-846X
                1984-2961
                November 2017
                : 26
                : 4
                : 465-471
                Affiliations
                [02] Belém Pará orgnameUniversidade Federal Rural da Amazônia orgdiv1Laboratório de Pesquisa Carlos Azevedo Brazil
                [01] Belém Pará orgnameUniversidade Federal do Pará orgdiv1Programa de Pós-graduação em Biologia de Agentes Infecciosos e Parasitários Brazil
                [03] Belém Pará orgnameUniversidade Federal do Pará orgdiv1Laboratório de Genética Humana e Médica Brazil
                [04] Belém Pará orgnameUniversidade Federal Rural da Amazônia orgdiv1Laboratório de Genética Aplicada Brazil
                Article
                S1984-29612017000400465
                10.1590/s1984-29612017067
                29166427
                b408fc80-1a34-4c68-8617-bf6f6fd92125

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 25 August 2017
                : 24 October 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 36, Pages: 7
                Product

                SciELO Brazil


                Amazônia,peixe,Siluriforme,Myxozoa,intestino,Ilha do Marajó,Amazonia,fish,Siluriform,intestine,Marajó Island

                Comments

                Comment on this article

                scite_

                Similar content116

                Cited by3

                Most referenced authors265