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Type: Artigo
Title: Morphology And Small Subunit Rdna-based Phylogeny Of Ceratomyxa Amazonensis N. Sp Parasite Of Symphysodon Discus, An Ornamental Freshwater Fish From Amazon
Author: Mathews
Patrick D.; Naldoni
Juliana; Maia
Antonio A.; Adriano
Edson A.
Abstract: The specious genus Ceratomyxa Thelodan, 1892, infect mainly gallbladder of marine fishes, with only five species reported infecting species from freshwater environment. This study performed morphological and phylogenetic analyses involving a new Ceratomyxa species (Ceratomyxa amazonensis n. sp.) found in gallbladder of Symphysodon discus Heckel, 1840 (Perciformes: Cichlidae), an important ornamental fish endemic to Amazon basin. Mature spores were strongly arcuate shaped and measured 7.0 +/- 0.3 (6.27.6) mu m in length, 15.8 +/- 0.4 (15.0-16.7) mu m in thickness, and polar capsules 3.22 +/- 0.34 (2.4-3.6) mu m in length and 2.63 +/- 0.17 (2.4-2.9) mu m in width. This was the first small subunit ribosomal DNA (SS rDNA) sequencing performed to Ceratomyxa species parasite of freshwater fish, and the phylogenetic analysis showed C. amazonensis n. sp. clustering in the early diverging subclade of the ceratomyxids, together with species of parasites of amphidromous/estuaries fishes, suggesting some role of the transition of the fishes between marine/freshwater environments in the evolutionary history of these parasites.
Subject: Systematic
Fish Parasite
Ornamental Fish
Ceratomyxidae Evolution
Editor: Springer
New York
Rights: fechado
Identifier DOI: 10.1007/s00436-016-5173-4
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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