Multiple Acquisitions of Pathogen-Derived Francisella Endosymbionts in Soft Ticks
نویسندگان
چکیده
منابع مشابه
Multiple Acquisitions of Pathogen-Derived Francisella Endosymbionts in Soft Ticks
Bacterial endosymbionts of ticks are of interest due to their close evolutionary relationships with tick-vectored pathogens. For instance, whereas many ticks contain Francisella-like endosymbionts (FLEs), others transmit the mammalian pathogen Francisella tularensis. We recently sequenced the genome of an FLE present in the hard tick Amblyomma maculatum (FLE-Am) and showed that it likely evolve...
متن کاملPhylogenetic analysis of the Francisella-like endosymbionts of Dermacentor ticks.
Bacterial endosymbionts with significant homology to Francisella tularensis (gamma-proteobacteria) have been described from at least five species of ticks in three different genera, including two North American Dermacentor species [D. andersoni Stiles and D. variabilis (Say)]. The evolutionary relationships among the Francisella-like endosymbionts (FLE) from different hosts and between FLE and ...
متن کاملDiscrimination between Francisella tularensis and Francisella-like endosymbionts when screening ticks by PCR.
The presence of Francisella-like endosymbionts in tick species known to transmit tularemia poses a potential diagnostic problem for laboratories that screen tick samples by PCR for Francisella tularensis. Tick samples initially considered positive for F. tularensis based on standard 16S rRNA gene PCR were found to be positive only for Francisella-like endosymbionts using a multitarget F. tulare...
متن کاملMolecular method for discrimination between Francisella tularensis and Francisella-like endosymbionts.
Environmental studies on the distribution of Francisella spp. are hampered by the frequency of Francisella-like endosymbionts that can produce a misleading positive result. A new, efficient molecular method for detection of Francisella tularensis and its discrimination from Francisella-like endosymbionts, as well as two variants associated with human disease (unusual F. tularensis strain FnSp1 ...
متن کاملFrancisella tularensis: an arthropod-borne pathogen
Arthropod transmission of tularemia occurs throughout the northern hemisphere. Few pathogens show the adaptability of Francisella tularensis to such a wide array of arthropod vectors. Nonetheless, arthropod transmission of F. tularensis was last actively investigated in the first half of the 20th century. This review will focus on arthropod transmission to humans with respect to vector species,...
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ژورنال
عنوان ژورنال: Genome Biology and Evolution
سال: 2018
ISSN: 1759-6653
DOI: 10.1093/gbe/evy021