Morphological and molecular data on Phyllodistomum (Digenea: Gorgoderidae) from Brazil, with the description of a new species parasitizing Hoplias malabaricus (Bloch, 1794) (Osteichthyes, Erythrinidae)

Autor(es)

Dias, K. G. A. ; de Leon, G. Perez-Ponce ; da Silva, R. J. ; Vieira, D. H. M. D. ; Leite, L. A. R. ; de Azevedo, R. K. ; Abdallah, V. D.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF HELMINTHOLOGY; v. 97, p. 11-pg., 2023-08-24.

Resumo

Phyllodistomum pepirense n. sp. is described from the urinary bladder of Hoplias malabaricus (Bloch, 1794), sampled in the Jacare-Pepira River in Sao Paulo state, Brazil. The isolates of the new species were recovered as a monophyletic group in the phylogenetic analysis of the 28S rRNA gene, which showed the new species as the sister taxa of Phyllodistomum virmantasi Pinacho-Pinacho, Sereno-Uribe, Hernandez-Orts, Garcia-Varela & Perez-Ponce de Leon, 2021, a species sampled from an eleotrid fish in Southeastern Mexico. The new species differs morphologically from P. virmantasi by having a larger body size, slightly lobed testes and ovary, a mostly intercaecal uterus, slightly diverticulated caeca, and vitelline masses irregularly shaped. The new species is also readily distinguished from other species of Phyllodistomum Braun, 1899 reported from freshwater fishes in Brazil - namely, P. rhamdiae Amato & Amato, 1993 and P. spatula Odhner, 1902. The new species is herein described based on morphological characteristics, molecular data from D1-D3 domains of the 28S rRNA gene, host association, and geographical distribution. (AU)

• Processo FAPESP: 17/00566-5 - Parasitos de peixes como bioindicadores de acumulação de metais pesados nos rios Jacaré-Pepira e Jacaré-Guaçú, Bacia Hidrográfica do Tietê-Jacaré, estado de São Paulo, Brasil
• Beneficiário: Lucas Aparecido Rosa Leite
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 20/05412-9 - Diversidade, taxonomia e sistemática de parasitos de peixes do Rio Pardo, Médio Rio Paranapanema, São Paulo
• Beneficiário: Reinaldo José da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 19/25223-9 - O conhecimento da fauna parasitária dos peixes e o seu uso no processo de gestão de recursos hídricos e impactos ambientais
• Beneficiário: Reinaldo José da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular