Morphological variability and molecular identification of Uncinaria spp. (Nematoda: Ancylostomatidae) from grizzly and black bears: new species or phenotypic plasticity?

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...

参考文章(69)
R. C. Anderson, Order Strongylida (the bursate nematodes). Nematode parasites of vertebrates: their development and transmission. pp. 41- 229 ,(1999) , 10.1079/9780851994215.0041
A. Loytynoja, N. Goldman, An algorithm for progressive multiple alignment of sequences with insertions Proceedings of the National Academy of Sciences of the United States of America. ,vol. 102, pp. 10557- 10562 ,(2005) , 10.1073/PNAS.0409137102
AARON B. A. SHAFER, CATHERINE I. CULLINGHAM, STEEVE D. CÔTÉ, DAVID W. COLTMAN, Of glaciers and refugia: a decade of study sheds new light on the phylogeography of northwestern North America. Molecular Ecology. ,vol. 19, pp. 4589- 4621 ,(2010) , 10.1111/J.1365-294X.2010.04828.X
Diego Darriba, Guillermo L Taboada, Ramón Doallo, David Posada, jModelTest 2: more models, new heuristics and parallel computing Nature Methods. ,vol. 9, pp. 772- 772 ,(2012) , 10.1038/NMETH.2109
Lisa A Newton, Neil B Chilton, Ian Beveridge, Robin B Gasser, Genetic evidence indicating that Cooperia surnabada and Cooperia oncophora are one species International Journal for Parasitology. ,vol. 28, pp. 331- 336 ,(1998) , 10.1016/S0020-7519(97)00149-5