Morphological and molecular characterization of Maritrema kostadinovae n. sp. (Digenea: Microphallidae) from the yellow-crowned night heron Nyctanassa violacea (Aves: Ardeidae) in Mexico

Hernández‐Orts, Jesús S.; Capasso, Sofía Carolina; Pinacho-Pinacho, Carlos Daniel; García-Varela, Martìn

doi:10.1007/s00436-020-06682-8

Parasitol Res

2020

DOI: 10.1007/s00436-020-06682-8

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Morphological and molecular characterization of Maritrema kostadinovae n. sp. (Digenea: Microphallidae) from the yellow-crowned night heron Nyctanassa violacea (Aves: Ardeidae) in Mexico

Jesús S. Hernández‐Orts

Sofía Carolina Capasso

Carlos Daniel Pinacho-Pinacho

et al.

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Cited by 2 publications

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Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

Aldama-Prieto,

González-García,

Mendoza-Garfías

et al. 2024

J. Helminthol.

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Members of the genus Maritrema Nicoll, 1907 include endoparasites of aquatic birds and mammals, distributed worldwide. Adult specimens were collected from the intestines of three bird species (the great black hawks, Buteogallus urubitinga Gmelin; laughing gull, Leucophaeus atricilla Linnaeus; and the willet, Tringa semipalmata Gmelin) in three localities along the Gulf of Mexico. Photogenophores were sequenced for the large subunit (LSU) from nuclear rDNA, and the new sequences were aligned with other microphalloid sequences available in GenBank. The maximum likelihood and Bayesian inference analyses revealed three independent lineages, one corresponding to a previously described species, Maritrema corai Hernández-Orts, Pinacho-Pinacho, García-Varela & Kostadinova, 2016, and two representing two undescribed species. These two new species are described in the current study. Maritrema itzamnai n. sp. can be morphologically differentiated from its four congeneric species occurring in coastal areas of Mexico by having smaller oral (20–29 × 20–38 μm) and ventral (20–39 × 19–33 μm) suckers. In addition, Maritrema itzamnai n. sp. possess annular vitellarium instead of a horseshoe-shaped vitellarium. Maritrema kukulkanni n. sp. can be distinguished from its congeneric species reported from Mexico by possessing a larger oesophagus (44–117μm) and by having a vitellarium distributed in both the hindbody and forebody. Maritrema corai is the third species recorded in this study parasitizing the great black hawk (Buteogallus urubitinga); this represents a new host and locality record, expanding its distribution range from the Mexican Pacific Ocean to the Gulf of Mexico.

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Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

Aldama-Prieto,

González-García,

Mendoza-Garfías

et al. 2024

J. Helminthol.

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The phylogenetic position of Maritrema afanassjewi Belopol'skaya, 1952 (Digenea, Plagiorchiida: Microphallidae), a parasite of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867 (Carnivora, Ursidae)

et al. 2023

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Adult digeneans of Maritrema afanassjewi Belopol’skaya, 1952 parasitize birds and mammals at the North Pacific coasts and was previously studied in a view of morphology. However, morphological features not supported by molecular characterization are considered an insufficient tool for the identification of evolutionary lineages of microfallid digeneans. Here we provide the first data on the phylogenetic position of this species inferred from sequences of 28S rRNA gene and ITS2 locus of the nuclear DNA as well as additional morphometric data. The trematodes were isolated from the intestine of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867on Iturup Island (the southern Kuril Islands). This is the second record of M. afanassjewi in the brown bear. Phylogeny based on the 28S rRNA gene was poorly resolved for this parasite species. The analyses based on ITS2 locus dataset showed that M. afanassjewi was a low-supported sister to Maritrema subdolum Jägerskiöld, 1909.

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Morphological and molecular characterization of Maritrema kostadinovae n. sp. (Digenea: Microphallidae) from the yellow-crowned night heron Nyctanassa violacea (Aves: Ardeidae) in Mexico

Cited by 2 publications

References 39 publications

Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

The phylogenetic position of Maritrema afanassjewi Belopol'skaya, 1952 (Digenea, Plagiorchiida: Microphallidae), a parasite of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867 (Carnivora, Ursidae)

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