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

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Rene-Martellet , M , Minard , G , Massot , R , Van Tran Van , Moro , C V , Chabanne , L & Mavingui , P 2017 , ' Bacterial microbiota associated with Rhipicephalus sanguineus (s.l.) ticks from France, Senegal and Arizona ' , Parasites & vectors , vol. 10 , 416 . https://doi.org/10.1186/s13071-017-2352-9

Title: Bacterial microbiota associated with Rhipicephalus sanguineus (s.l.) ticks from France, Senegal and Arizona
Author: Rene-Martellet, Magalie; Minard, Guillaume; Massot, Raphael; Van Tran Van,; Moro, Claire Valiente; Chabanne, Luc; Mavingui, Patrick
Contributor: University of Helsinki, Biosciences
Date: 2017-09-07
Language: eng
Number of pages: 10
Belongs to series: Parasites & vectors
ISSN: 1756-3305
URI: http://hdl.handle.net/10138/224589
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.
Subject: Rhipicephalus sanguineus
Symbionts
Coxiella
Rickettsia
Bacillus
BORNE DISEASES
TRANSMISSION
ANIMALS
TURANICUS
IXODIDAE
COXIELLA
ACARI
COMMUNITIES
LATREILLE
PATHOGENS
1182 Biochemistry, cell and molecular biology
319 Forensic science and other medical sciences
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