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Phylogenetic position of Sphaerospora testicularis and Latyspora scomberomori n. gen. n. sp. (Myxozoa) within the marine urinary clade

Published online by Cambridge University Press:  15 October 2010

Institute of Parasitology, Biology Centre, Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur 50603, Malaysia
Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo, Tokyo 113 8657, Japan
Department of Veterinary Public Health and Animal Pathology, University of Bologna, via Tolara di Sopra 50, 40064 Ozzano Emilia, Bologna, Italy
Institute of Parasitology, Biology Centre, Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
*Corresponding author: Institute of Parasitology, Biology Centre ASCR, Branišovská 31, 370 05 České Budějovice, Czech Republic. Tel: +420 38 7775425. Fax: +420 38 5310388. E-mail:


An amendment of the family Sinuolineidae (Myxosporea) is proposed in order to include a newly described genus Latyspora n. gen. The type species Latyspora scomberomori n. gen. n. sp. is a coelozoic parasite in the kidney tubules of Scomberomorus guttatus. In addition to the morphological and molecular characterization of L. scomberomori n. gen. n. sp., we also present novel SSU rDNA data on Sphaerospora testicularis, a serious parasite of Dicentrarchus labrax. Performed phylogenetic analyses revealed that both species cluster within the marine urinary clade encompassing the representatives with a shared insertion within their V4 SSU rRNA region and grouping according to the shape of their spores’ sutural line and their similar tissue tropism in the host. Sphaerospora testicularis is the closest relative to Parvicapsula minibicornis within the Parvicapsula subclade and L. scomberomori n. gen. n. sp. is the basal species of the Zschokkella subclade. The phylogenetic position of S. testicularis, outwith the basal Sphaerospora sensu stricto clade, and its morphology suggest it being a non-typical Sphaerospora. The sequence data provided on S. testicularis can help in future revisions of the strongly polyphyletic genus Sphaerospora. We recommend re-sequencing of several sphaerosporids as an essential step before such taxonomic changes are accomplished.

Research Article
Copyright © Cambridge University Press 2010

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