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Morphological and genetic characterization of Pterygodermatites ( Paucipectines ) zygodontomis (Nematoda: Rictulariidae) from Necromys lasiurus (Rodentia: Sigmodontinae) from Uberlândia, Brazil

2017; Cambridge University Press; Volume: 92; Issue: 5 Linguagem: Inglês

10.1017/s0022149x17000736

1475-2697

Natália Alves Costa, Raquel de Oliveira Simões, Roberto do Val Vilela, Joyce G. R. Souza, Suiry Cardoso, Natália Oliveira Leiner, Rosana Gentile, Arnaldo Maldonado,

Parasites and Host Interactions

Pterygodermatites (Paucipectines) zygodontomis, a nematode parasite of the small intestine of the rodent Necromys lasiurus, from Uberlândia, Minas Gerais state, Brazil, was analysed by light and scanning electron microscopy. Additionally, phylogenies were inferred from the mitochondrially encoded cytochrome c oxidase I gene (MT-CO1). Details of the helminth surface, such as the oral aperture, cephalic papillae, papillae in the posterior region of the body and longitudinal cuticular elements represented by spine-like projections and fans are presented, adding new taxonomic details. Molecular phylogenetic analysis, based on the MT-CO1, demonstrated that P. (P.) zygodontomis and Pterygodermatites (Paucipectines) jaegerskioldi form a unique evolutionary unit in accordance with the subgenus Paucipectines and corroborated their occurrence in cricetid and didelphid hosts.