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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Trinigyrus spp. (Monogenea: Dactylogyridae) from Brazilian catfishes: new species, molecular data and new morphological contributions to the genus

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Author(s):
Franceschini, L. [1] ; Acosta, A. A. [1, 2] ; Zago, A. C. [1] ; Mueller, M. I. [1, 3] ; da Silva, R. J. [1]
Total Authors: 5
Affiliation:
[1] Sao Paulo State Univ UNESP, Inst Biosci, Dept Parasitol, Rua Prof Doutor Antonio Celso Wagner Zanin 250, BR-18618689 Botucatu, SP - Brazil
[2] North West Univ, Unit Environm Sci & Management, Water Res Grp, Potchefstroom Campus, ZA-2520 Potchefstroom - South Africa
[3] Fed Univ Sao Paulo Unifesp, Dept Biol Sci, Rua Prof Arthur Riedel 275, BR-09972270 Diadema, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF HELMINTHOLOGY; v. 94, 2020.
Web of Science Citations: 2
Abstract

This study describes two new species, Trinigyrus anthus n. sp. and Trinigyrus carvalhoi n. sp., from gills of Hypostomus spp. from the Upper Parana River basin, Brazil. Trinigyrus peregrinus is redescribed based on examination of its holotype, paratypes and new material of specimens parasitizing Pterygoplichthys ambrosettii, also from the Upper Parana River basin, Brazil. New morphological features were included in the diagnosis of the genus, such as the presence of a sclerotized border on the anchor base, and a weakly sclerotized fringe on the base of the male copulatory organ (MCO). Trinigyrus anthus n. sp. differs from other congeners by the shape of the MCO, presenting an enlarged base with sclerotized fringes resembling flower petals. Trinigyrus carvalhoi n. sp. and T. peregrinus are similar but can be differentiated from each other mainly by the sclerotization of the vagina (absent in the new species), and the morphology of the MCO (C-shaped versus one counterclockwise circle, respectively). For the first time, gene sequences of Trinigyrus spp. from Brazil were obtained (partial ribosomal 28S and mitochondrial cytochrome c oxidase I (mtCOI)). The genetic divergences among the new species and T. peregrinus varied from 2 to 3% (6-18 pb) based on sequences of 28S ribosomal DNA (rDNA), and 6-7% (83-92 pb) using mtCOI. Phylogenetic analyses based on partial 28S rDNA revealed that Trinigyrus, Heteropriapulus and Unilatus formed a monophyletic and well-supported clade of monogeneans from Neotropical freshwater loricariids, suggesting a closer relationship among these dactylogyrids and their hosts. (AU)

FAPESP's process: 15/22382-8 - Biodiversity of helminth parasites of the Siluriformes dominant species from the Aguapeí River, RPPN Foz do Rio Aguapeí, municipality of Castilho, Sao Paulo, Brazil
Grantee:Aline Angelina Acosta
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/07829-9 - Biodiversity of parasites of Characiformes fishes (Teleostei) from streams of the Middle Paranapanema River Basin, Southeast Brazil
Grantee:Aline Cristina Zago
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 12/22895-7 - Helminth biodiversity of dominant fish species from Aguapeí River, RPPN Foz do Aguapeí, São Paulo State, Brazil
Grantee:Aline Angelina Acosta
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/07850-7 - Biodiversity of the helminths of Loricariidae fishes (Teleostei: Siluriformes) from Sapucaí-Mirim River, Brazil
Grantee:Lidiane Franceschini
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 15/11543-0 - Biodiversity and spacial structure of parasites of Loricariidae fishes (Teleostei: Siluriformes) from Brazil
Grantee:Lidiane Franceschini
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 11/23588-8 - Biodiversity of helminth parasites of fishes from the Sapucaí-Mirim River, São Paulo State, Brazil
Grantee:Aline Cristina Zago
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 15/11542-4 - Biodiversity and spatial structure of metazoan parasite communities of fishes from the Sapucaí-Mirim River, Southeastern Brazil
Grantee:Aline Cristina Zago
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 17/16546-3 - Systematic and distribution of myxosporeans of Potamotrygonidae (Elasmobranchii, Myliobatiformes) in Amazon, Platina and Parnaíba river basins.
Grantee:Maria Isabel Muller Formico
Support Opportunities: Scholarships in Brazil - Post-Doctoral