Phenotypic variation in a significant spore character in Kudoa (Myxosporea: Multivalvulida) species infecting brain tissue

Burger, Mieke A. A. and Adlard, Robert D. (2010) Phenotypic variation in a significant spore character in Kudoa (Myxosporea: Multivalvulida) species infecting brain tissue. Parasitology, 137 12: 1759-1772. doi:10.1017/S0031182010000673


Author Burger, Mieke A. A.
Adlard, Robert D.
Title Phenotypic variation in a significant spore character in Kudoa (Myxosporea: Multivalvulida) species infecting brain tissue
Formatted title
Phenotypic variation in a significant spore character in Kudoa (Myxosporea: Multivalvulida) species infecting brain tissue
Journal name Parasitology   Check publisher's open access policy
ISSN 0031-1820
1469-8161
Publication date 2010-07-01
Sub-type Article (original research)
DOI 10.1017/S0031182010000673
Open Access Status Not Open Access
Volume 137
Issue 12
Start page 1759
End page 1772
Total pages 14
Place of publication Cambridge, United Kingdom
Publisher Cambridge University Press
Language eng
Formatted abstract
Some Kudoa species display variations in the number of polar capsules in spores within an individual pseudocyst.
Nonetheless, there is usually a dominant morphotype which forms a significant element of diagnosis. In 2007, a Kudoa
isolate from whiting (spores with 5 (dominant) or 6 (minor) polar capsules) was characterized by Burger et al. (2007) as being
100% identical in SSU rDNA to Kudoa yasunagai (spores with 7 polar capsules) from a halibut, despite its obvious
morphological differences. The authors hypothesized that either SSU rDNA had reached its level of resolution or that the
genetic identity revealed conspecificity. To further investigate these hypotheses, SSU and LSU rDNA sequence data were
coupled with principal components, correlation, and regression analyses of morphometric data from different kudoid
isolates that infect brain tissue to determine the relationships between spore morphotypes and different kudoid isolates. The
trends in morphometrics between the spores of particular isolates were so similar that it was concluded that the molecular
results did indicate conspecificity rather than SSU reaching its level of resolution. This phenotypic influence on a significant
diagnostic character within the Kudoidae has a major impact on the diagnosis of this, and potentially other, pathogenic
species. © Cambridge University Press 2010
Keyword Myxozoa
Kudoidae
Kudoa yasunagai
Kudoa neurophila
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Chemistry and Molecular Biosciences
 
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Created: Sun, 05 Dec 2010, 10:03:25 EST