Description and Phylogenetic Affinities of a New Species of Neopsilotrema (Digenea: Psilostomidae) from Lesser Scaup, Aythya affinis (Anseriformes: Anatidae)
| Autor: | Dana M. Bennett, Jakson R. Martens, Kimberly M. Bates, Elena A. Serbina, Tyler J. Achatz, Robert E. Sorensen, Roy G. Nelson, Vasyl V. Tkach |
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| Rok vydání: | 2021 |
| Předmět: |
Minnesota
Zoology Trematode Infections DNA Ribosomal Digenea Holarctic Genus DNA Ribosomal Spacer RNA Ribosomal 28S Animals Internal transcribed spacer Phylogeny Ecology Evolution Behavior and Systematics Aythya Base Sequence Phylogenetic tree biology Bird Diseases Genetic Variation NADH Dehydrogenase DNA Helminth biology.organism_classification Anseriformes RNA Ribosomal 5.8S Ducks Molecular phylogenetics Parasitology Trematoda RNA Helminth |
| Zdroj: | Journal of Parasitology. 107 |
| ISSN: | 0022-3395 |
| DOI: | 10.1645/21-25 |
| Popis: | Neopsilotrema is a small genus of psilostomid digeneans parasitic in the intestine of birds in the Palearctic and Nearctic. At present, the genus includes 4 species: Neopsilotrema lisitsynae from the Palearctic and Neopsilotrema affine, Neopsilotrema lakotae, and Neopsilotrema marilae from the Nearctic. Herein, we describe a new species, Neopsilotrema itascae n. sp., from lesser scaup Aythya affinis collected in Minnesota. The species can be distinguished from congeners on the basis of the ventral sucker:oral sucker width ratio, body width:length ratio, and cirrus sac size, along with other characters. We generated new 28S ribosomal deoxyribonucleic acid (DNA) and NADH dehydrogenase (ND1) mitochondrial DNA sequence data of a variety of psilostomids from the Palearctic and Nearctic along with sequences of the ribosomal internal transcribed spacer (ITS) region (ITS1 + 5.8S + ITS2) from 3 Neopsilotrema species. The molecular phylogenetic affinities of a variety of psilostomid taxa were studied using 28S sequence data. The 28S sequences of psilostomids demonstrated 1-7.9% intergeneric divergence, whereas the sequences of ND1 had 17.7-34.1% intergeneric divergence. The interspecific divergence among members of Neopsilotrema was somewhat lower (0.2-0.5% in 28S; 0.3-0.4% in ITS; 12-15.7% in ND1). Our comparison of DNA sequences along with morphologic study suggests Holarctic distribution of N. lisitsynae. |
| Databáze: | OpenAIRE |
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