Analysis of the bacterial community in female Rhipicephalus microplus ticks from selected provinces in Luzon, Philippines, using next-generation sequencing.

Exp Appl Acarol

Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College, Laguna, 4031, Philippines.

Published: November 2023

AI Article Synopsis

  • Analysis of the tick microbiome aids in understanding interactions between ticks and their symbiotic bacteria, which may help discover new pathogens and improve tick control strategies.
  • The study focused on the tropical cattle tick Rhipicephalus microplus in the Philippines, analyzing 45 partially engorged female ticks from nine provinces using next-generation sequencing of their bacterial DNA.
  • Findings revealed 667 bacterial operational taxonomic units, with notable pathogens identified and varying bacterial diversity levels across provinces, highlighting the potential for targeted tick management approaches.

Article Abstract

Analysis of the tick microbiome can help understand tick-symbiont interactions and identify undiscovered pathogens, which may aid in implementing control of ticks and tick-borne diseases. The tropical cattle tick Rhipicephalus microplus is a widespread ectoparasite of cattle in the Philippines, negatively affecting animal productivity and health. This study characterized the bacterial community of R. microplus from Luzon, Philippines, through next-generation sequencing of 16s rRNA. DNA was extracted from 45 partially engorged female ticks from nine provinces. The DNA samples were pooled per province and then sequenced and analyzed using an open-source bioinformatics platform. In total, 667 operational taxonomic units (OTUs) were identified. The ticks in all nine provinces were found to have Coxiella, Corynebacterium, Staphylococcus, and Acinetobacter. Basic local alignment search tool (BLAST) analysis revealed the presence of known pathogens of cattle, such as Bartonella, Ehrlichia minasensis, and Dermatophilus congolensis. The tick samples from Laguna, Quezon, and Batangas had the most diverse bacterial species, whereas the tick samples from Ilocos Norte had the lowest diversity. Similarities in the composition of the bacterial community in ticks from provinces near each other were also observed. This is the first study on metagenomic analysis of cattle ticks in the Philippines, providing new insights that may be useful for controlling ticks and tick-borne diseases.

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Source
http://dx.doi.org/10.1007/s10493-023-00851-xDOI Listing

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