Relationships between four novel ceratomyxid parasites from the gall bladders of labrid fishes from Heron Island, Queensland, Australia

Abstract Ceratomyxid parasites from the gall bladder of fishes from the family Labridae were examined for their taxonomic identity and their relatedness to other species of myxozoans. This paper describes four novel species Ceratomyxa choerodonae n. sp. from Choerodon cyanodus ; Ceratomyxa cheilinae...

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Bibliographic Details
Published in:Parasitology international 2008-06, Vol.57 (2), p.158-165
Main Authors: Heiniger, Holly, Gunter, Nicole L, Adlard, Robert D
Format: Article
Language:English
Subjects:
Animals
Ceratomyxa
Ceratomyxidae
DNA, Protozoan - analysis
DNA, Ribosomal - analysis
Eukaryota - classification
Eukaryota - genetics
Eukaryota - isolation & purification
Eukaryota - ultrastructure
Fish Diseases - parasitology
Gallbladder - parasitology
Gastroenterology and Hepatology
Infectious Disease
Labridae
Myxosporea
Perciformes - parasitology
Phylogeny
Protozoan Infections, Animal - parasitology
Queensland
Sequence Analysis, DNA
Spores, Protozoan - ultrastructure
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Summary:Abstract Ceratomyxid parasites from the gall bladder of fishes from the family Labridae were examined for their taxonomic identity and their relatedness to other species of myxozoans. This paper describes four novel species Ceratomyxa choerodonae n. sp. from Choerodon cyanodus ; Ceratomyxa cheilinae n. sp. from Cheilinus chlorourus ; Ceratomyxa oxycheilinae n. sp. from Oxycheilinus digramma ; and Ceratomyxa thalassomae n. sp. from Thalassoma lunare. Each species is characterised morphologically and small subunit (18 S) rDNA sequences were used in molecular phylogenetic analyses. Comparison of the small subunit rDNA sequences revealed four distinct species even though morphological differences indicated the presence of only two morphologically distinctive spore types. Phylogenetic analyses revealed that the ceratomyxids from labrid fishes did not form a clade to the exclusion of all other myxosporeans and provides evidence that host relatedness is not a good character to discriminate between species within the genus Ceratomyxa.
ISSN:1383-5769
1873-0329
DOI:10.1016/j.parint.2007.11.006