PMID: 9183708May 1, 1997Paper

Small subunit ribosomal RNA sequences unite alternate actinosporean and myxosporean stages of Myxobolus cerebralis the causative agent of whirling disease in salmonid fish

The Journal of Eukaryotic Microbiology
K B AndreeR P Hedrick

Abstract

The alternating myxosporean and actinosporean stages of the myxozoan parasite Myxobolus cerebralis (Hofer 1903) from its salmonid fish and aquatic oligochaete hosts, respectively, were compared for sequence homology of the small subunit (18S) ribosomal RNA genes. A 99.8% similarity between the sequences of these two stages was substantially greater than that of M. cerebralis compared to two other Myxobolus sp. from salmonid fish. Our results are the first molecular evidence confirming the alternating stages, initially described by Wolf and Markiw [25] for the life cycle of M. cerebralis but found in two different taxonomic classes (Myxosporea and Actinosporea) are indeed forms of the same organism. Sequencing of rRNA genes of the actinosporean stage followed by development of specific primers for DNA amplification of the myxosporean stage, as in our study, should be applied to solve other myxozoan life cycles. Additionally, these approaches will in the future provide useful diagnostic reagents for the detection and study of this important group of fish pathogens.

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Citations

Jul 15, 1999·International Journal for Parasitology·K B AndreeR P Hedrick
Jun 26, 2010·Molecular Biology and Evolution·Nathaniel M EvansPaulyn Cartwright
Jan 29, 2013·The Journal of Parasitology·Tamsen M PolleyJerri L Bartholomew
Oct 10, 2003·The Journal of Parasitology·Michael A Gilbert, Willard O Granath
Jun 1, 2000·Systematic Parasitology·C Xiao, S S Desser
Sep 24, 2004·International Journal for Parasitology·Astrid S HolzerRodney Wootten
Oct 3, 2001·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·J W WhitakerL A Hanson
May 22, 2004·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Garry O KelleyRonald P Hedrick
May 30, 2002·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·T QureshiC Santrich
Jul 9, 2002·The Journal of Parasitology·María J RedondoPilar Alvarez-Pellitero
Feb 3, 2018·Systematic Parasitology·Diego Henrique Mirandola Dias VieiraRodney Kozlowiski de Azevedo
Jan 26, 2005·The Journal of Eukaryotic Microbiology·Garry O KelleyRonald P Hedrick
Jan 22, 2004·The Journal of Eukaryotic Microbiology·Sihem BahriRonald P Hedrick
Jun 21, 2007·Journal of Helminthology·Hassan Rahimian
Jul 18, 2001·The Journal of Eukaryotic Microbiology·M L KentC Xiao

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