Taxonomy and molecular phylogeny of Myxobolus bilobus n. sp. (Myxozoa) parasitizing Notemigonus crysoleucas (Cyprinidae) in Algonquin Park, Ontario, Canada

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dc.creator Cone, David Knight
dc.creator Yang, Jing
dc.creator Sun, Genlou
dc.creator Easy, Russell
dc.date.accessioned 2014-09-26T18:23:01Z
dc.date.available 2014-09-26T18:23:01Z
dc.date.issued 2005-09-23
dc.identifier.issn 0177-5103
dc.identifier.issn 1616-1580
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/25875
dc.description Publisher's version/PDF en_CA
dc.description.abstract Myxobolus bilobus n. sp. (Myxozoa) is described from golden shiner Notemigonus crysoleucas in Algonquin Park, Ontario, Canada. Plasmodia develop at the distal end of gill filaments, where they form a novel-shaped plasmodium made up of 2 side-by-side hemispheres joined at a central pore. Surrounding gill tissue is vacuolated, necrotic, and hemorrhagic. Spores of M. bilobus n. sp. resemble those of M. aureatus Ward, 1919, M. angustus Kudo, 1934, M. spalli Landsberg & Lom, 1991, and M. pseudokoi Li & Desser, 1985 in parasitizing cyprinids and in their pyriform shape. Spores of M. bilobus n. sp., however, are much larger (20 to 22.1 [micrometres] long, 7.5 to 9.3 [micrometres] wide, and 6 [micrometres] thick) than those of these other species, and the plasmodium is bi-lobed rather than the typical hollow sphere. A phylogenetic analysis of the 18S rDNA (2014 bp) reveals that M. bilobus n. sp. is a member of a clade that includes 11 species of Myxobolus, all of which are parasites of cyprinid fishes in North America or Eurasia. The study concludes that M. bilobus n. sp. is a member of a clade that has undergone radiation within cyprinid fishes of the 2 continents and that this evolution has involved both host and site switching. en_CA
dc.language.iso en en_CA
dc.publisher Inter-Research en_CA
dc.rights Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
dc.subject.lcsh Myxozoa -- Ontario
dc.subject.lcsh Cladistic analysis
dc.subject.lcsh Cyprinidae -- Parasites -- Ontario
dc.title Taxonomy and molecular phylogeny of Myxobolus bilobus n. sp. (Myxozoa) parasitizing Notemigonus crysoleucas (Cyprinidae) in Algonquin Park, Ontario, Canada en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Diseases of Aquatic Organisms 66, 227-232. (2005) en_CA


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Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
 
 

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