Bartolomé Husson, CarolinaDasilva Martíns, DamianValiñas Carballal, Rosa MaríaGabín García, Luís B.Nave, AnabelaGarcía Pérez, Ana L.Monceau, KarineThiéry,DenisChristie, AlastairChoi, Moon BoSobrino Rey, BeatrizAmigo Lechuga, JorgeMaside Rodríguez, Xulio Manuel2025-01-202025-01-202024-09-21Carolina Bartolomé, Damian Dasilva-Martíns, Rosa Valiñas, Luís B. Gabín-García, Anabela Nave, Ana L. García-Pérez, Karine Monceau, Denis Thiéry, Alastair Christie, Moon Bo Choi, Beatriz Sobrino, Jorge Amigo, Xulio Maside, Prevalence and population genetic analyses of parasites in invasive Vespa velutina and native Hymenoptera, Journal of Invertebrate Pathology, Volume 207, 2024, 108203, ISSN 0022-2011, https://doi.org/10.1016/j.jip.2024.1082030022-2011https://hdl.handle.net/10347/38740Invasive species pose a threat to the ecological balance of the ecosystems they invade by altering local host-pathogen dynamics. To investigate these relationships and their potential consequences, we examined the prevalence and genetic diversity patterns of Trypanosomatidae, Lipotrophidae, and Nosematidae in a collection of sympatric isolates of the invasive hornet Vespa velutina and local Hymenoptera from two recently colonized areas: Europe and South Korea. Data were gathered through PCR amplification and massive parallel sequencing, and analyses were conducted using population genetics tools. Parasite prevalences showed substantial variation depending on (i) the parasite family (Trypanosomatidae and Nosematidae were the most and less prevalent, respectively), (ii) location (e.g. Galicia displayed the highest pooled values), (iii) the season (highest in spring for Trypanosomatidae and Lipotrophidae), and (iv) the host. V. velutina exhibited significantly lower parasite occurrence than native Hymenoptera across all parasite families (consistent with the enemy release hypothesis), although this difference was less pronounced during the periods of heightened predatory activity, suggestive of trophic transmission. Parasite species displayed significant genetic differentiation between European and South Korean isolates, yet no differentiation was observed across hosts, suggesting that all Hymenoptera are exposed to a common local pathogen population. There was no indication that V. velutina acted as a carrier of foreign parasites to the invaded territorieseng© 2024 The Author(s). Published by Elsevier Inc. This article is available under the Creative Commons CC-BY-NC-ND licenseAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Vespa velutinaInvasive speciesNative HymenopteraNosematidaeTrypanosomatidaeLipotrophidae32 Ciencias médicasjournal article10.1016/j.jip.2024.1082031096-0805open access