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Morphological and molecular data on a new species of Plagiorhynchus Luhe, 1911 (Acanthocephala: Plagiorhynchidae) from the long-billed curlew (Numenius americanus) from northern Mexico

Title
Morphological and molecular data on a new species of Plagiorhynchus Luhe, 1911 (Acanthocephala: Plagiorhynchidae) from the long-billed curlew (Numenius americanus) from northern Mexico
Authors
Garcia-Varela, M.Park, J-KHernandez-Orts, J. S.Pinacho-Pinacho, C. D.
Ewha Authors
박중기
SCOPUS Author ID
박중기scopus
Issue Date
2020
Journal Title
JOURNAL OF HELMINTHOLOGY
ISSN
0022-149XJCR Link

1475-2697JCR Link
Citation
JOURNAL OF HELMINTHOLOGY vol. 94
Keywords
AcanthocephalaLSU rDNASSU rDNAsystematicPlagiorhynchidaePlagiorhynchusnew speciestaxonomy
Publisher
CAMBRIDGE UNIV PRESS
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
A new species of the genus Plagiorhynchus Luhe, 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.
DOI
10.1017/S0022149X19000543
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일반대학원 > 에코과학부 > Journal papers
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