Description of Ganymedes yurii sp. n. (Ganymedidae), a New Gregarine Species from the Antarctic Amphipod Gondogeneia sp. (Crustacea)

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Authors

DIAKIN Andrei WAKEMAN Kevin VALIGUROVÁ Andrea

Year of publication 2017
Type Article in Periodical
Magazine / Source Journal of Eukaryotic Microbiology
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1111/jeu.12336
Field Zoology
Keywords Apicomplexa; Cephaloidophoroidea; eugregarine; marine benthic amphipod; molecular phylogeny; ultrastructure; Weddell Sea
Description A novel species of aseptate eugregarine, Ganymedes yurii sp. n., is described using microscopic and molecular approaches. It inhabits the intestine of Gondogeneia sp., a benthic amphipod found along the shore of James Ross Island, Weddell Sea, Antarctica. The prevalence of the infection was very low and only a few caudo-frontal syzygies were found. Morphologically, the new species is close to a previously described amphipod gregarine, Ganymedes themistos, albeit with several dissimilarities in the structure of the contact zone between syzygy partners, as well as other characteristics. Phylogenetic analysis of the 18S rDNA from G. yurii supported a close relationship between these species. These two species were grouped with other gregarines isolated from crustaceans hosts (Cephaloidophoroidea); however, statistical support throughout the clade of Cephaloidophoroidea gregarines was minimal using the available dataset.
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