Bacterial microbiota associated with Rhipicephalus sanguineus (s.l.) ticks from France, Senegal and Arizona

Abstract : Background: Ticks of the group Rhipicephalus sanguineus (sensu lato) are distributed worldwide and are major pathogen vectors of both dogs and humans. Previous phylogenetic reconstructions have suggested the existence of two main lineages within this group, "Tropical" and "Temperate". Symbiotic interactions contribute to vector development, survival, reproduction and competence. The diversity of microbial communities associated with different populations of R. sanguineus (s.l.) remains poorly characterized, however, this knowledge will aid in future studies of hosts-microbiota-pathogen interactions. To gain insight into the bacterial communities associated with R. sanguineus (s.l.) ticks, 40 specimens from France, Senegal and Arizona were analyzed by high-throughput 16S amplicon sequencing. All tick specimens were taxonomically classified using the mitochondrial 12S rDNA gene, which provides sufficient phylogenetic resolution to discriminate different lineages of R. sanguineus. Results: Rhipicephalus sanguineus (s.l.) samples from Senegal belonged to the "Tropical" lineage, samples from France belonged to the "Temperate" lineage, whereas both lineages were identified in samples from Arizona. Regardless of origin, each bacterial microbiota was dominated by three genera: Coxiella, Rickettsia and Bacillus. Rickettsia and Coxiella were the two main genera found in females whereas males had a higher proportion of Bacillus. Significant differences of relative abundances were evidenced between specimens from different geographical origins. Conclusions: This study highlights differences in the microbiota composition within R. sanguineus (s.l.) specimens from different genotypes, genders and geographical origins. This knowledge will help in future studies of the symbiotic interactions, biology and vector competence of the R. sanguineus (s.l.) complex.
Type de document :
Article dans une revue
Parasites and Vectors, BioMed Central, 2017, 10 (6), pp.1-10. 〈10.1186/s13071-017-2352-9〉
Liste complète des métadonnées

Littérature citée [53 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01597863
Contributeur : Archive Ouverte Prodinra <>
Soumis le : vendredi 29 septembre 2017 - 06:02:26
Dernière modification le : jeudi 8 février 2018 - 11:08:07

Fichier

René-Martellet et al. - 2017 ...
Publication financée par une institution

Identifiants

Collections

Citation

Magalie René-Martellet, Guillaume Minard, Raphael Massot, Van Tran Van, Claire Valiente-Moro, et al.. Bacterial microbiota associated with Rhipicephalus sanguineus (s.l.) ticks from France, Senegal and Arizona. Parasites and Vectors, BioMed Central, 2017, 10 (6), pp.1-10. 〈10.1186/s13071-017-2352-9〉. 〈hal-01597863〉

Partager

Métriques

Consultations de la notice

173

Téléchargements de fichiers

36