A new species,Henneguya lacustrisn. sp. (Cnidaria: Myxosporea), infecting the gills ofAstyanax lacustrisfrom Brazil

Author(s)

Vieira, Diego Henrique Mirandola Dias ^[1] ; Rangel, Luis Filipe ^{[2, 3]} ; Tagliavini, Vinicius Panciera ^[1] ; Abdallah, Vanessa Doro ^[4] ; Santos, Maria Joao ^{[2, 3]} ; de Azevedo, Rodney Kozlowiski ^[4]

Affiliation

^[1] Univ Estadual Paulista Julio de Mesquita Filho Un, Dept Parasitol, R Prof Dr Antonio Celso Wagner Zanin 250, BR-18618689 Botucatu, SP - Brazil

^[2] Univ Porto, Fac Ciencias, Porto - Portugal

^[3] Univ Porto, CIIMAR Porto, Porto - Portugal

^[4] Ctr Univ CESMAC, Programa Posgrad Anal Sistemas Ambientais, Maceio, Alagoas - Brazil

• Document type: Journal article
• Source: Parasitology Research; v. 119, n. 12 SEP 2020.
• Web of Science Citations: 0

Abstract

The present study describesHenneguya lacustrisn. sp. parasitizingAstyanax lacustris(Lutken 1875), from the Tiete River, State of Sao Paulo, Brazil, through morphological and molecular analysis. Myxospores of the parasites were found in the gills ofA. lacustriswith 13% prevalence of infection. The myxospores were oval and presented as measures (mean +/- standard deviation): total length 18.3 +/- 2.2 mu m, body length 10.4 +/- 1.6 mu m, body width 4.9 +/- 0.9 mu m, tail length 7.2 +/- 2.5 mu m. The polar capsule was 4.8 +/- 0.3 mu m long and 1.5 +/- 0.2 mu m wide. The polar tubules, present inside the polar capsules, had 6 to 7 turns. The ultrastructural analysis allowed the observation of the asynchronous development of the myxospores. Phylogenetic analysis showedH. lacustrisn. sp. as a sister species ofH.chydadeaBarassa and Cordeiro 2003 in a subclade formed by species that parasitize the gills of Characiform fish from Brazil. Using molecular and morphological characterization, this parasite was identified as a new species of the genusHenneguyaThelohan 1892. (AU)

• FAPESP's process: 19/07708-5 - Use of molecular techniques for the characterization of new species of myxozoans parasites of fishes from Tietê River, Brazil
• Grantee: Diego Henrique Mirandola Dias Vieira
• Support type: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 14/12862-0 - Analysis of the Mixozoaries biodiversity (Myxozoa: Myxosporea) parasites of the dominant fish species from Batalha River, middle Tietê River, SP, Brazil through morphological, histological, ultrastructural and molecular characterization
• Grantee: Rodney Kozlowiski de Azevedo
• Support type: Regular Research Grants
• FAPESP's process: 15/24901-2 - Phylogeny and taxonomy of myxozoans parasites of fish from inland rivers in the State of São Paulo
• Grantee: Diego Henrique Mirandola Dias Vieira
• Support type: Scholarships in Brazil - Doctorate
• FAPESP's process: 19/19060-0 - Systematic and distribution of myxozoans collected in fish from Pardo River, middle Paranapanema River, State of São Paulo
• Grantee: Diego Henrique Mirandola Dias Vieira
• Support type: Scholarships in Brazil - Post-Doctorate