Morphological and molecular data on a new species of Plagiorhynchus Lühe, 1911 Acanthocephala: Plagiorhynchidae from the long-billed curlew Numenius americanus from northern Mexico
Por:
Garcia-Varela, M., Park J.-K., Hernandez-Orts, J. S., Pinacho-Pinacho, C. D.
Publicada:
1 ene 2020
Resumen:
A new species of the genus Plagiorhynchus Lühe, 1911 from the intestine of the long-billed curlew Numenius americanus from northern Mexico is described. Plagiorhynchus Plagiorhynchus aznari n. Sp. Is morphologically distinguished from other congeneric species from the Americas by having a trunk expanded anteriorly and a cylindrical proboscis, armed with 19 longitudinal rows of hooks, with 14-15 hooks each row. Nearly complete sequences of the small subunit and large subunit of the nuclear ribosomal DNA of the new species were determined and compared with available sequences from GenBank. Phylogenetic analyses inferred from the two molecular markers consistently showed that P. Plagiorhynchus aznari n. Sp. Is closely related to P. Plagiorhynchus allisonae, and this clade is sister to a clade formed by P. Prosthorhynchus transversus and P. Prosthorhynchus cylindraceus from Plagiorhynchidae. The new species represents the second record of the genus in Mexico and the fourth species in the Americas. The phylogenetic relationships among the members of the order Polymorphida in this study provide significant insights into the evolution of ecological associations between parasites and their definitive hosts. Our analyses suggest that the colonization of marine mammals, fish-eating birds and waterfowl in Polymorphidae might have occurred independently, from a common ancestor of Centrorhynchidae and Plagiorhynchidae that colonized terrestrial birds and mammals. Copyright © Cambridge University Press 2019A.
Filiaciones:
Garcia-Varela, M.:
Departamento de Zoologia, Instituto de Biologia, Universidad Nacional Autonoma de Mexico UNAM0, Avenida Universidad 3000, Ciudad UniversitariaCP 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Ave Univ 3000,Ciudad Univ, Mexico City 04510, DF, Mexico
Park J.-K.:
Division of EcoScience, Ewha Womans University, Seoul, 03760, South Korea
Hernandez-Orts, J. S.:
Centro de Investigacion Aplicada y Transferencia Tecnologica en Recursos Marinos Almirante Storni, Güemes 1030 8520 San Antonio Oeste, Rio Negro, Argentina
Ctr Invest Aplicada & Transferencia Tecnol Recurs, Guemes 1030, RA-8520 San Antonio Oeste, Rio Negro, Argentina
Pinacho-Pinacho, C. D.:
Catedras CONACyT, Instituto de Ecologia, A.C., Red de Estudios Moleculares Avanzados, Carretera antigua a Coatepec 351 El Haya, Xalapa, Veracruz, 91070, Mexico
Inst Ecol AC, Catedras CONACyT, Red Estudios Mol Avanzados, Carretera Antigua Coatepec 351, Xalapa 91070, Veracruz, Mexico
Ewha Womans Univ, Div EcoSci, Seoul 03760, South Korea
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