Morphological and molecular characterization of an enigmatic clinostomid trematode (Digenea: Clinostomidae) parasitic as metacercariae in the body cavity of freshwater fishes (Cichlidae) across Middle America
Por:
Briosio-Aguilar, R., Garcia-Varela, M., Hernandez-Mena, I, D., Rubio-Godoy, M., Perez-Ponce de Leon, G.
Publicada:
1 ene 2019
Resumen:
The family Clinostomidae Lühe, 1901 contains 29 species allocated to seven genera, of which Clinostomum Leidy, 1856 is the most diverse, with c. 14 valid species. The diversity of Clinostomum has been assessed, combining morphological and molecular data. The genetic library for species in this genus has increased steadily, although there is little or no information for the other genera included in the family. Molecular phylogenetic relationships among the genera of clinostomids have not been assessed, and their classification is still based on morphological traits. The monotypic Ithyoclinostomum was described from a fish-eating bird in Brazil, and its metacercariae have been found in several locations in South America, parasitizing erythrinid freshwater fishes. We collected unusually large metacercariae from the body cavity of cichlids in several locations across Middle America. These metacercariae exhibited some resemblance to Ithyoclinostomum, although several differences prevent their inclusion in Ithyoclinostomum dimorphum, casting doubt on their taxonomic identification. The main objective of this paper was to characterize the metacercariae collected in cichlids using both morphology and molecular data from three molecular markers, and to assess the molecular phylogenetic relationships among the genera of Clinostomidae to establish the position of the newly generated sequences. We took a conservative position and tentatively placed the metacercariae as belonging to Ithyoclinostomum. © Copyright Cambridge University Press 2018.
Filiaciones:
Briosio-Aguilar, R.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, Distrito Federal, CP 04510, Mexico
Posgrado en Ciencias Biológicas, UNAM, Mexico
Hernandez-Mena, D
UNAM, Posgrad Ciencias Biol, Km 2-5 Ant Carretera Coatepec, Xalapa 91070, Veracruz, Mexico
Garcia-Varela, M.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, Distrito Federal, CP 04510, Mexico
Hernandez-Mena, D
Hernandez-Mena, I, D.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, Distrito Federal, CP 04510, Mexico
Rubio-Godoy, M.:
Instituto de Ecología, A.C. Red de Biología Evolutiva, km 2.5 Ant. Carretera a Coatepec, Xalapa, Veracruz, 91070, Mexico
AC Red Biol Evolut, Inst Ecol, Km 2-5 Ant Carretera Coatepec, Xalapa 91070, Veracruz, Mexico
Perez-Ponce de Leon, G.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Avenida Universidad 3000, Ciudad Universitaria, Distrito Federal, CP 04510, Mexico
I , Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Ave Univ 3000,Ciudad Univ, Mexico City 04510, DF, Mexico
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