Data/hora: 08/06/2024 19:35:28

Biblioteca(s): 	Embrapa Amapá.	
Data corrente: 	12/02/2019	
Data da última atualização: 	18/10/2022	
Autoria: 	NEGREIROS, L. P.; TAVARES-DIAS, M.; ELISEI, C.; TAVARES, L. E. R.; PEREIRA, F. B.	
Afiliação: 	LUCIANO P. NEGREIROS, UNIFAP; MARCOS TAVARES DIAS, CPAF-AP; CARINA ELISEI, Bolsista CPAF-AP; LUIZ E. R. TAVARES, UFMS; FELIPE B. PEREIRA, UFMS.	
Título: 	First description of the male of Philometroides acreanensis and phylogenetic assessment of Philometridae (Nematoda: Dracunculoidea) suggest instability of some taxa.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Parasitology International, v. 69, p. 30-38, 2019.	
DOI: 	https://doi.org/10.1016/j.parint.2018.10.010	
Idioma: 	Inglês	
Conteúdo: 	The male of Philometroides acreanensis, parasitic in the anterior intestine external wall of the freshwater catfish Pimelodus blochii, from the Brazilian Amazon, is described for the first time. Additional data on the morphology of females is given. The new morphological data strengthened the validity of the species as well as its first genetic characterization, using three nuclear genetic markers (18S and 28S of the rDNA and ITS1-58S-ITS2), confirmed the high genetic resemblance of male and female specimens. Philometroides acreanensis shows morphological features of the generic diagnosis of Neophilometroides, Alinema, Philometra and Philometroides. Phylogenetic analyses using sequences of the18S rDNA from representatives of Dracunculoidea confirmed the validity of P. acreanensis and its close relatedness with Alinema rather than with other genera. The validity of Philonemidae was confirmed, as was the monophyly of Philometridae and Clavinema. However, Dentiphilometra, Philometra and Philometroides appear not to be monophyletic. Host taxa, habitat and geographic occurrence seem to have some relationship with the evolutionary traits of certain phylogenetic assemblages of philometrids, which were highly supported in the phylogentic reconstructions. Even though interesting aspects of the phylogeny and taxonomy of Philometridae came to light, further integrative approaches should be used that include additional genetic markers, due to the loose boundaries between some genera as observed here.	
Palavras-Chave: 	Caracterização genética; Genetic characterization.	
Thesagro: 	Bagre; Parasito; Peixe de Água Doce.	
Thesaurus Nal: 	Freshwater fish; Parasites.	
Categoria do assunto: 	S Ciências Biológicas	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/192650/1/CPAF-AP-2019-First-description-of-the-male.pdf	
Registro original: 	Embrapa Amapá (CPAF-AP)	
Exemplares: 	CPAF-AP - (18090-1) - UPC - AP - DD -  -  -  - DIS