Tracking invasion events: phylogeography of Hyalomma marginatum in the Mediterranean basin with a focus on Southern France
Jourdan Pineau, Hélène (Centre de coopération internationale en recherche agronomique pour le développement (CIRAD))
Bernard, Célia (Centre de coopération internationale en recherche agronomique pour le développement (CIRAD))
Blanda, Valeria (Centre de coopération internationale en recherche agronomique pour le développement (CIRAD))
Bourquia, Maria (Institut Agronomique et Vétérinaire Hassan II)
Bru, David (Centre National de la Recherche Scientifique. Université de Montpellier)
Cabezón Ponsoda, Óscar (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)
Carrera Faja, Laura (Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animals)
Espunyes, Johan (Unitat mixta d'investigació IRTA-UAB en Sanitat Animal. Centre de Recerca en Sanitat Animal)
Gottlieb, Yuval (Hebrew University of Jerusalem)
Joly-Kukla, Charlotte (Centre National de la Recherche Scientifique. Université de Montpellier)
Malandrin, Laurence (ONIRIS)
Mechouk, Noureddine (University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca)
Mihalca, Andrei Daniel (University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca)
Pollet, Thomas (Centre National de la Recherche Scientifique. Université de Montpellier)
Saengram, Phonsiri (Centre National de la Recherche Scientifique. Université de Montpellier)
Torina, Alessandra (Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri")
Valcárcel, Félix (Animalario del Departamento de Reproducción Animal. CSIC)
Vatansever, Zati (Kafkas University)
Vial, Laurence (Centre de coopération internationale en recherche agronomique pour le développement (CIRAD))
Zahri, Abderrahmane (Institut Agronomique et Vétérinaire Hassan II)
Verheyden, Hélène (Centre National de la Recherche Scientifique. Université de Toulouse)
Huber, Karine (University of Montpellier)

Date:	2025
Abstract:	Background: Hyalomma marginatum is a hard tick vector of various pathogens, including Crimean-Congo Hemorrhagic fever virus, recently detected in French specimens. This species has a wide distribution from North Africa to Eastern Europe and has only recently been considered established in Southern France. These changes in species distribution led us to explore the genetic structure of tick populations in the Mediterranean basin and attempt to infer the origin of French populations. Methods: We used two mitochondrial markers (12S rRNA and Cytochrome Oxidase 1) and genotyped ticks from nine Mediterranean countries. We compared genetic indices and haplotypic composition between these countries and the various French geographical populations. Results: Across all countries, we showed significant genetic differentiation, with a certain proximity between neighboring countries. We found very different genetic compositions among the French geographic populations: some exhibited signs of recent expansion, while others suggested the presence of ancient populations. Conclusions: It is possible that small populations of H. marginatum were already present in France and are now more abundant. This recent change in population structure could be owing to increased human activity and climate change. These factors, combined with a potentially high level of phenotypic plasticity, could facilitate H. marginatum conquest of more northerly latitudes in France and other European countries.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Biological invasion ; France ; Genetic diversity ; Hyalommamarginatum ; Mediterranean basin ; Phylogeography ; Tick ; SDG 3 - Good Health and Well-being ; SDG 13 - Climate Action
Published in:	Parasites & vectors, Vol. 18, Num. 1 (2025) , art. 407, ISSN 1756-3305

DOI: 10.1186/s13071-025-06927-4
PMID: 41088284

15 p, 1.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Centre de Recerca en Sanitat Animal (CReSA-IRTA)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Research group Wildlife Ecology & Health
Articles > Research articles
Articles > Published articles