Myxobolus species infecting the cartilaginous rays of the gill filaments in cyprinid fishes
During a survey on myxosporean parasites of cyprinid fishes in Hungary, Myxobolus infections were found in the cartilaginous rays of the gill filaments in roach (Rutilus rutilus) and bleak (Alburnus alburnus). Myxobolus spp. causing the infections were studied by morphological, histological and molecular methods. Small plasmodia surrounded by chondrocytes contained relatively few spores which differed from each other and from the known Myxobolus spp. both in their morphology and 18S rDNA sequences. Both species, described as M. feisti sp. nov. and M. susanlimae sp. nov., are characterised by a specific cartilaginous histotropism.
KeywordsMyxozoa new species histology site selection molecular phylogeny
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- Hall T.A. 1999. BioEdit: A user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symposium Series, 41, 95–98.Google Scholar
- Hoffman G.L., Dunbar C.E., Bradford A. 1962. Whirling disease of trout caused by Myxosoma cerebralis in the United States. Specific Scientific Reports. Fish No. 427, 15 pp.Google Scholar
- Molnár K. 1994. Comments on the host, organ and tissue specificity of fish myxosporeans and on the types of their intrapiscine development. Parasitologica Hungarica, 27, 5–20.Google Scholar
- Nowak B., Bruno D., Bryan J. 2001. EAFP. Histopathology Workshops: Notes and Images. Aqua Education; www.aqua.southcom.com.au.Google Scholar
- Schäperclaus W. 1931. Die Drehkrankheit in der Forellenzucht und ihre Bekämpfung. Zeitschrift für Fischerei, 29, 521–567.Google Scholar
- Swofford D.L. 2000. PAUP*. Phylogenetic Analysis Using Parsimony (*and Other Methods). Version 4. Sinauer Associates, Sunderland, Massachusetts.Google Scholar
- Thompson J.D., Higgins D.G., Gibson T.J. 1994. CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Research, 22, 4673–4680. DOI: 10.1093/nar/22.22.4673.PubMedCrossRefGoogle Scholar