作者: Stefano Catalano , Manigandan Lejeune , Bradley van Paridon , Christopher A. Pagan , James D. Wasmuth
DOI: 10.1645/14-621.1
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摘要: Abstract: The hookworms Uncinaria rauschi Olsen, 1968 and yukonensis (Wolfgang, 1956) were formally described from grizzly (Ursus arctos horribilis) black bears americanus) of North America. We analyzed the intestinal tracts 4 9 Alberta British Columbia, Canada isolated specimens with anatomical traits never previously documented. applied morphological molecular techniques to investigate taxonomy phylogeny these parasites. analysis supported polymorphism at vulvar region for females both U. yukonensis. hypothesis plasticity was confirmed by genetic internal transcribed spacers (ITS-1 ITS-2) nuclear ribosomal DNA. Two distinct genotypes identified, differing 5 fixed sites ITS-1 (432 base pairs [bp]) 7 ITS-2 (274 bp). Morphometric data revealed host-relate...