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Species-Level Profiling of Ixodes pacificus Bacterial Microbiomes Reveals High Variability Across Short Spatial Scales at Different Taxonomic Resolutions
Journal article   Open access   Peer reviewed

Species-Level Profiling of Ixodes pacificus Bacterial Microbiomes Reveals High Variability Across Short Spatial Scales at Different Taxonomic Resolutions

Kayla M Socarras, Joshua P Earl, Jaroslaw E Krol, Archana Bhat, Max Pabilonia, Meghan H Harrison, Steven P Lang, Bhaswati Sen, Azad Ahmed, Michael Hester, …
Genetic testing and molecular biomarkers, v 25(8), pp 551-562
Aug 2021
DOI: https://doi.org/10.1089/gtmb.2021.0088
PMID: 34406842
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://doi.org/10.1089/gtmb.2021.0088View
Published, Version of Record (VoR)Open Access (License Unspecified),  Open

Abstract

Animals California Ixodes - genetics Ixodes - metabolism Ixodes - microbiology Microbiota - genetics RNA, Ribosomal, 16S - genetics Sequence Analysis, DNA - methods Sequence Analysis, RNA - methods Tick-Borne Diseases - genetics
Outbreaks of severe and chronic tick-borne diseases (TBDs) are on the rise. This is through the transmission of infectious disease agents to humans during tick feeding. The transmission rate and extent of microbial exchange, however, vary based on the tick microbiome composition. While select microbes are determined to be members of the normal tick microbiome and others are clearly recognized mammalian and/or avian pathogens, the status of many other members of the tick microbiota with respect to human and alternate host pathogenesis remains unclear. Moreover, the species-level 16S microbiome of prominent TBD vectors, including , have not been extensively studied. To elucidate the microbiome composition, we performed a pan-domain species-specific characterization of the bacterial microbiome on adult ticks collected from two regional parks within Western California. Our methods provide for characterizing nuances within cohort microbiomes and their relationships to geo-locale of origin, surrounding fauna, and prevalences of known and suspected pathogens in relation to current TBD epidemiological zones. Ninety-two adult bacterial microbiomes were characterized using a high-fidelity, pan-domain, species-specific, full-length 16S rRNA amplification method using circular consensus sequencing performed on the Pacific Biosciences Sequel platform. Data analyses were performed with the MCSMRT data analysis package and database. The species-specific microbiome composition illustrates a complex assortment of microflora, including over 900 eubacterial species with high taxonomic diversity, which was revealed to vary by sex and geo-locale, though the use of full-length 16S gene sequencing. The TBD-associated pathogens, such as , , and , were identified along with a host of bacteria previously unassociated with ticks. Species-level taxonomic classification of the microbiome revealed that full-length bacterial 16S gene sequencing is required for the granularity to elucidate the microbial diversity within and among ticks based on geo-locale.

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6 citations in Web of Science
6 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

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Collaboration types
Domestic collaboration
Web of Science research areas
Biochemistry & Molecular Biology
Genetics & Heredity
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