Description of two new species of allocreadiid trematodes (Digenea: Allocreadiidae) in middle American freshwater fishes using an integrative taxonomy approach
Por:
Hernández-Mena D.I., Pinacho-Pinacho C.D., García-Varela M., Mendoza-Garfias B., Pérez-Ponce de León G.
Publicada:
1 feb 2019
Ahead of Print:
1 ene 2018
Resumen:
Integrative taxonomy uses several sources of information to establish
more robust species delimitation criteria. In this study, we followed
that approach to describe two new species of allocreadiid trematodes
from freshwater fish distributed in locations across Middle America. The
new species were first recognized by using sequences of the domains
D1-D3 of the ribosomal 28S rRNA gene and then, morphological data (light
and scanning electron microscopy (SEM)), host association, and
geographical distribution were considered as additional sources of
information to complement the species delimitation and description.
Auriculostoma tica n. sp. was found in the intestine of Gymnotus
maculosus Albert and Miller in Costa Rica, while Wallinia anindoi n. sp.
was found in the intestine of Astyanax aeneus (Gunther) in Oaxaca and
Chiapas, Mexico, as well as in a location of Guatemala. A phylogenetic
analysis combining newly generated sequences of the two new species
along with those available for other allocreadiids in GenBank, revealed
that isolates of each species are reciprocally monophyletic, and also
their interrelationships: Au. tica n. sp. is a sister taxon of
Auriculostoma totonacapanensis Razo-Mendivil et al., 2014, and W.
anindoi n. sp. is a sister taxon of Wallinia brasiliensis Dias, et al.,
2018. Genetic distances for the 28S rRNA gene were estimated among the
American species of allocreadiids and further supported the validity of
the new species.
Filiaciones:
Hernández-Mena D.I.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-153, Mexico, 04510, Mexico
Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Apartado Postal 70-153, Mexico, 04510, Mexico
Pinacho-Pinacho C.D.:
Investigador Cátedras CONACyT, Instituto de Ecología, A.C., Red de Estudios Moleculares Avanzados, Km 2.5 Ant. Carretera a Coatepec, Xalapa, Veracruz, 91070, Mexico
García-Varela M.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-153, Mexico, 04510, Mexico
Mendoza-Garfias B.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-153, Mexico, 04510, Mexico
Pérez-Ponce de León G.:
Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-153, Mexico, 04510, Mexico
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