Evidence of striking morphological similarity and tissue tropism of phylogenetically distant myxozoan genera: Myxidium and Paramyxidium in the kidney of the European eel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00588455" target="_blank" >RIV/60077344:_____/24:00588455 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/24:43908393

Result on the web

<a href="https://doi.org/10.14411/fp.2024.013" target="_blank" >https://doi.org/10.14411/fp.2024.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14411/fp.2024.013" target="_blank" >10.14411/fp.2024.013</a>

Result language

angličtina

Original language name

Evidence of striking morphological similarity and tissue tropism of phylogenetically distant myxozoan genera: Myxidium and Paramyxidium in the kidney of the European eel

Original language description

European eel, Anguilla anguilla (Linnaeus) (Elopomorpha: Anguilliformes), is a critically endangered fish of ecological and economic importance, hosting numerous parasites, including myxozoans (Cnidaria). Since its initial discovery in the kidney of European eel, Myxidium giardi C & eacutep & egravede, 1906 has been reported with numerous spore sizes and shapes from various tissues of multiple anguillid species. Morphological variability, wide host and tissue spectrum, and lack of sequence data raised doubts about the conspecificity of reported isolates. Subsequent studies provided 18S rDNA sequences of several isolates from anguillids and other elopiform fish, and demonstrated a split of parasite data into two distinct phylogenetic lineages, one comprising the M. giardi sequence, and the other all species infecting elopiform fishes classified under the recently established genus Paramyxidium Freeman et Kristmundsson, 2018. Myxidium giardi was, however, transferred to this genus as Paramyxidium giardi n. comb. and designated as the type species of the genus. In line with this change, the sequence originally identified as M. giardi was considered to have been incorrectly associated with this species. To shed light on the status of M. giardi originally described by C & eacutep & egravede (1906), we conducted microscopic and molecular examinations of various organs of 24 individuals of European eel, originating from diverse Czech habitats. Through morphometric and molecular analyses, we demonstrated that spore and polar capsule morphology, morphometry and tissue tropism of our European eel kidney parasite isolates matched the features of the original M. giardi description. Our isolates clustered in the lineage encompassing the first published M. giardi sequence. Thus, the originally described M. giardi indeed represents an existing species within the genus Myxidium B & uumltschli, 1882, which we formally resurrect and redescribe. Due to the morphological and molecular differences between M. giardi and P. giardi of Freeman et Kristmundsson (2018), we additionally rename the latter species as Paramyxidium freemani nom. nov.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Folia Parasitologica

ISSN

0015-5683

e-ISSN

1803-6465

Volume of the periodical

71

Issue of the periodical within the volume

AUG

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

013

UT code for WoS article

001284586000001

EID of the result in the Scopus database

2-s2.0-85200530824