Novel Henneguya spp. (Cnidaria: Myxozoa) from cichlid fish in the Amazon basin cluster by geographic origin

Novel Henneguya spp. (Cnidaria: Myxozoa) from cichlid fish in the Amazon basin cluster by geographic origin

Author Zatti, Suellen Aparecida Google Scholar
Atkinson, Stephen D. Google Scholar
Maia, Antnio A. M. Google Scholar
Bartholomew, Jerri L. Google Scholar
Adriano, Edson A. Autor UNIFESP Google Scholar
Abstract We describe three new Henneguya spp. (Myxobolidae) found parasitizing two species of cichlid fish from the Amazon basin, Brazil: H. tucunarei n. sp. from gill filaments of Cichla monoculus and H. tapajoensis n. sp. from gill filaments of Cichla pinima, both from the Tapajs River, Para State and H. jariensis n. sp. in the fins of Cichla monoculus from the Jari River, Amapa State. We based descriptions on myxospore morphology and small subunit ribosomal DNA sequences, and used a phylogenetic analysis to compare the new Henneguya species with known relatives. Spores of the three species had similar morphology and morphometrics, but differed molecularly 5-7.5%, and were no more than 94% similar to any other sequence in GenBank. Together with having different hosts, these data supported the diagnosis of the parasites as distinct, novel species. Maximum likelihood and Bayesian analyses showed that H. tucunarei n. sp., H. tapajoensis n. sp., and H. jariensis n. sp. plus Henneguya paraensis (which parasitizes Cichla temensis) formed a well-supported sub-clade of Henneguya parasites of cichlids from the Amazon basin, in a lineage sister to those in characiforms hosts. Our analysis was consistent with previous studies that suggest that aquatic environment and vertebrate host group are the strongest correlates with phylogenetic signals in the Myxobolidae.
Keywords Myxosporea
Freshwater environment
Neotropical region
ssrDNA sequencing
Peacock bass
Phylogenetic analysis
xmlui.dri2xhtml.METS-1.0.item-coverage New York
Language English
Sponsor CAPES Foundation within the Ministry of Education, Brazil (Capes)
Sao Paulo Research Foundation-FAPESP (FAPESP) |Brazilian Fostering Agency CNPq (CNPQ)
Grant number CAPES: BEX-6729/2015-00
FAPESP: 2016/22047]
CNPq: 301886/2016-4
Date 2018
Published in Parasitology Research. New York, v. 117, n. 3, p. 849-859, 2018.
ISSN 0932-0113 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 849-859
Access rights Closed access
Type Article
Web of Science ID WOS:000426550800026

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