A native-range source for a persistent trematode parasite of the exotic New Zealand mudsnail (Potamopyrgus antipodarum) in France
2017
Gérard, Claudia | Miura, Osamu | Lorda, Julio | Cribb, Thomas H. | Nolan, Matthew J. | Hechinger, Ryan F. | Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO) ; Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des sciences de l'environnement de Rennes (OSERen) ; Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Science Research Center ; Kochi University | Department of Ecology, Evolution and Marine Biology [Santa Barbara] (EEMB) ; University of California [Santa Barbara] (UC Santa Barbara) ; University of California (UC)-University of California (UC) | Centre for Marine Science, School of Biological Sciences, University of Queensland ; The University of Queensland (UQ [All campuses : Brisbane, Dutton Park Gatton, Herston, St Lucia and other locations]) | Department of Pathology and Pathogen Biology ; Royal Veterinary College | Scripps Institution of Oceanography (SIO - UC San Diego) ; University of California [San Diego] (UC San Diego) ; University of California (UC)-University of California (UC) | US National Sea Grant [s R/ANS-210] | JSPS KAKENHI [25840160]
International audience
Mostrar más [+] Menos [-]Inglés. The globally successful invasive snail, Potamopyrgus antipodarum (Tateidae), is rarely parasitized except in its native New Zealand where it is infected as first intermediate host by at least 20 species of trematode parasitic castrators. In France and Poland, only one trematode parasitic castrator, belonging to the Aporocotylidae (the blood flukes of fishes), is known to infect P. antipodarum, and its origin remains a mystery. We investigated the genetic identities, taxonomic relationships, and prevalences of this parasite and other aporocotylids infecting P. antipodarum and closely related snails in a French stream, and throughout New Zealand and southeast Australia. ITS2 DNA sequences of the French parasite matched with Aporocotylid sp. I (sensu Hechinger, 2012) from P. antipodarum in New Zealand. Hence, the aporocotylid parasite in Europe most likely originated from the native range of the introduced host. Aporocotylid sp. I was rare in both native and invasive ranges, infecting overall less than 1 out of 1,000 snails. The parasite and its host have a persistent relationship in France, as they both were repeatedly encountered over a period of 14 years. Our molecular phylogeny also reveals that this parasite is part of a diverse and poorly known group of aporocotylids in New Zealand and southeastern Australia.
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