Email this article Phylogenetic position of Polymorphus phippsi Kostylew, 1922 and Polymorphus magnus Skrjabin, 1913 (Palaeacanthocephala, Polymorphidae) ascertained on the basis of molecular data
- Authors: Diumina A.V.1, Galaktionov K.V.1, Atrashkevich G.I.2
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Affiliations:
- Zoological Istitute of Russian Academy of Sciences
- Institute of the Biological Problems of the North Far East Branch of Russian Academy of Sciences
- Issue: Vol 58, No 1 (2024)
- Pages: 56-63
- Section: Articles
- URL: https://journals.rcsi.science/0031-1847/article/view/255551
- DOI: https://doi.org/10.31857/S0031184724010058
- EDN: https://elibrary.ru/SSJCAF
- ID: 255551
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Abstract
Polymorphidae is a family of acanthocephalans, obligatory parasites with a complex life cycle involving arthropods as intermediate hosts and vertebrates of different taxa as definitive hosts. The current taxonomy of Polymorphidae seems to be equivocal. Its type genus Polymorphus has been shown to be polyphyletic based on molecular data. We obtained partial sequences of 28S rDNA gene and cox1 mitochondrial gene of two species of this genus, Polymorphus phippsi and P. magnus, and used them in a reconstruction of the polymorphid phylogeny. As a result, P. magnus was included into the same clade as the type species of the genus, P. minutus, while P. phippsi appeared to be close to Profilicollis spp. The position of P. phippsi agrees with the polyphyly of Polymorphus but does not correspond to its taxonomic status based on described phenotypic characters.
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About the authors
A. V. Diumina
Zoological Istitute of Russian Academy of Sciences
Author for correspondence.
Email: aleksandra.diumina@zin.ru
Russian Federation, Universitetskaya emb., 1, Saint-Petersburg, 199034
K. V. Galaktionov
Zoological Istitute of Russian Academy of Sciences
Email: kirill.galaktionov@zin.ru
Russian Federation, Universitetskaya emb., 1, Saint-Petersburg, 199034
G. I. Atrashkevich
Institute of the Biological Problems of the North Far East Branch of Russian Academy of Sciences
Email: gatr@ibpn.ru
Russian Federation, Portovaya str., 18, Magadan, 685000
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