Morphometrical comparison of three members of the Gyrodactylus nemachili-like species group (Monogenea, Gyrodactylidae) on Barbatula barbatula L. in Czech Republic, with a reinstatement of Gyrodactylus papernai Ergens & Bychowsky, 1967

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Authors

PŘIKRYLOVÁ Iva MATĚJUSOVÁ Iveta JARKOVSKÝ Jiří GELNAR Milan

Year of publication 2008
Type Article in Periodical
Magazine / Source Systematic Parasitology
MU Faculty or unit

Faculty of Science

Citation
Field Zoology
Keywords Gyrodactylus; Monogenea; stone loach; Barbatula barbatula; ITS rDNA; PCA; discriminant analysis; morphometrics
Description The Gyrodactylus nemachili-like species complex parasitizing stone loach in the Czech Republic was investigated based on the detailed morphometric analysis of the hard parts of the parasite haptor. The existence of two species, Gyrodactylus jiroveci Ergens & Bychowsky 1967 and Gyrodactylus pseudonemachili Ergens & Bychowsky 1967 was confirmed. A standard discriminant analysis of the morphometric data showed a clear separation between specimens of G. jiroveci and another species or variant. Based on the morphology of the haptoral hard parts, this third species was more similar to G. jiroveci than G. pseudonemachili. Based on comparison with the original archived material the third species was identified as Gyrodactylus papernai Ergens & Bychowsky 1967 recently considered as a synonym of G. jiroveci. These analyses provided sufficient evidence for the restoration of G. papernai to species level. Partial sequences of the internal transcribed spacer rRNA genes (ITS rDNA) verified validity of all three Gyrodactylus species studied.
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