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Molecular Detection and Phylogenetic Analyses of Diverse Bartonella Species in Bat Ectoparasites Collected from Yunnan Province, China.


ABSTRACT: Bartonella species has been validated as blood-borne bacteria in mammals and has a substantial opportunity to be harbored by a variety of hematophagous arthropod vectors. Bats, along with their ectoparasites, are recognized worldwide as one of the natural reservoir hosts for these bacteria. However, there have been few investigations of Bartonella bacteria toward a broad range of obligated bat ectoparasites in China. Here, molecular detection of Bartonella species was performed to survey the infection among bat ectoparasites and follow-up phylogenetic analyses to further characterize the evolutionary relationships of the genus. A total of 434 bat ectoparasites involving four types of arthropods, namely, bat mites, bat tick, bat fleas, and bat flies (further divided into traditionally fly-like bat flies and wingless bat flies) were collected in 10 trapping sites in Yunnan Province, southwestern China. Bartonella was detected by PCR amplification and sequencing through four gene target fragments (gltA, ftsZ, rpoB, and ITS). Accordingly, diverse Bartonella species were discovered, including both the validated species and the novel genotypes, which were characterized into several geographical regions with high prevalence. Phylogenetic analyses based on gltA and multi-locus concatenated sequences both demonstrated strong phylogeny-trait associations of Bartonella species from bats and their parasitic arthropods, suggesting the occurrence of host switches and emphasizing the potential connecting vector role of these ectoparasites. Nevertheless, the maintenance and transmission of Bartonella in both bat and hemoparasite populations have not been fully understood, as well as the risk of spillage to humans, which warrants in-depth experimental studies focusing on these mammals and their ectoparasites.

SUBMITTER: Kuang G 

PROVIDER: S-EPMC9699461 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Molecular Detection and Phylogenetic Analyses of Diverse <i>Bartonella</i> Species in Bat Ectoparasites Collected from Yunnan Province, China.

Kuang Guopeng G   Zhang Jing J   Yang Weihong W   Pan Hong H   Han Xi X   Yang Lifen L   Wang Juan J   Yang Tian T   Song Zhizhong Z   Feng Yun Y   Liang Guodong G  

Pathogens (Basel, Switzerland) 20221101 11


<i>Bartonella</i> species has been validated as blood-borne bacteria in mammals and has a substantial opportunity to be harbored by a variety of hematophagous arthropod vectors. Bats, along with their ectoparasites, are recognized worldwide as one of the natural reservoir hosts for these bacteria. However, there have been few investigations of <i>Bartonella</i> bacteria toward a broad range of obligated bat ectoparasites in China. Here, molecular detection of <i>Bartonella</i> species was perfor  ...[more]

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