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dc.contributor.authorRubio-Godoy, Miguelen_UK
dc.contributor.authorRazo-Mendivil, Ulisesen_UK
dc.contributor.authorGarcia-Vasquez, Adrianaen_UK
dc.contributor.authorFreeman, Mark Aen_UK
dc.contributor.authorShinn, Andrewen_UK
dc.contributor.authorPaladini, Giuseppeen_UK
dc.description.abstractBackground: Goodeid topminnows are live-bearing fishes endemic to the Mexican Highlands (Mesa Central, MC). Unfortunately, in the MC, environmental degradation and introduced species have pushed several goodeid species to the brink of extinction. Invasive fishes can introduce exotic parasites, and the most abundant goodeid, blackfin goodea Goodea atripinnis Jordan, is parasitised by six exotic helminths. Poeciliids are widely dispersed invasive fishes, which exert negative ecological effects on goodeids. Poeciliids host several species of the monogenean genus Gyrodactylus von Nordmann, 1832, including pathogenic, invasive parasites. Here, we looked for evidence of Gyrodactylus species switching hosts from poeciliids to goodeids.  Methods: Fish were collected in rivers draining the MC into both sides of the continental divide. Hosts were screened for gyrodactylid parasites in localities where G. atripinnis and poeciliids occurred sympatrically. Gyrodactylus specimens were characterised morphologically (attachment apparatus) and molecularly (internal transcribed spacer region, ITS). A Bayesian phylogenetic tree using ITS sequences established relationships between gyrodactylids collected from goodeid fishes and those from parasites infecting poeciliids.  Results: Gyrodactylids were collected from G. atripinnis in six localities on both sides of the watershed where exotic poeciliids occurred sympatrically. Morphological and molecular analyses indicated the presence of four undescribed species of Gyrodactylus infecting this goodeid host. Gyrodactylus tomahuac n. sp., the most abundant and geographically widespread species, is described here. The other three Gyrodactylus spp. are not described, but their ITS sequences are used as molecular data presented here, are the only available for gyrodactylids infecting goodeid fishes. Morphological and molecular data suggest that two distinct groups of gyrodactylids infect goodeids, one of which shares a common ancestor with gyrodactylids parasitizing poeciliids.  Conclusions: No evidence was found of gyrodactylids switching hosts from invasive poeciliids to endemic goodeids, nor vice versa. Moreover, considering that G. atripinnis is known to host both Gyrodactylus lamothei Mendoza-Palmero, Sereno-Uribe & Salgado-Maldonado, 2009 and Gyrodactylus mexicanus Mendoza-Palmero, Sereno-Uribe & Salgado-Maldonado, 2009, with the addition of G. tomahuac n. sp. and the three undescribed Gyrodactylus spp. reported, at least six gyrodactylids may infect this host. This would make monogeneans the second most abundant parasite group infecting G. atripinnis, which to date is known to harbour 22 helminth species: nine digeneans, five nematodes, four cestodes, three monogeneans and one acanthocephalan.en_UK
dc.publisherBioMed Centralen_UK
dc.relationRubio-Godoy M, Razo-Mendivil U, Garcia-Vasquez A, Freeman MA, Shinn A & Paladini G (2016) To each his own: no evidence of gyrodactylid parasite host switches from invasive poeciliid fishes to Goodea atripinnis, the most dominant endemic freshwater goodeid fish in the Mexican Highlands. Parasites and Vectors, 9, Art. No.: 604.
dc.rights© The Author(s). 2016 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.en_UK
dc.subjectGyrodactylus tomahuacen_UK
dc.subjectGyrodactylus lamotheien_UK
dc.subjectInvasive speciesen_UK
dc.subjectEnemy release hypothesisen_UK
dc.titleTo each his own: no evidence of gyrodactylid parasite host switches from invasive poeciliid fishes to Goodea atripinnis, the most dominant endemic freshwater goodeid fish in the Mexican Highlandsen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitleParasites and Vectorsen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderRoyal Societyen_UK
dc.contributor.affiliationInstitute of Ecology, Mexicoen_UK
dc.contributor.affiliationInstitute of Ecology, Mexicoen_UK
dc.contributor.affiliationInstitute of Ecology, Mexicoen_UK
dc.contributor.affiliationRoss University School of Veterinary Medicineen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.relation.funderprojectDeveloping a microscopy and image analysis system for diagnosis and characterisation of parasites infecting wild and cultured finfishen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorRubio-Godoy, Miguel|en_UK
local.rioxx.authorRazo-Mendivil, Ulises|en_UK
local.rioxx.authorGarcia-Vasquez, Adriana|en_UK
local.rioxx.authorFreeman, Mark A|en_UK
local.rioxx.authorShinn, Andrew|0000-0002-5434-2685en_UK
local.rioxx.authorPaladini, Giuseppe|0000-0003-4944-0499en_UK
local.rioxx.projectRG150640|Royal Society|
Appears in Collections:Aquaculture Journal Articles

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