Kuang Guopeng, Zhang Jing, Yang Weihong, Pan Hong, Han Xi, Yang Lifen, Wang Juan, Yang Tian, Song Zhizhong, Feng Yun, Liang Guodong
Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Yunnan Institute of Endemic Disease Control and Prevention, Dali 671000, China.
School of Public Health, Dali University, Dali 671000, China.
Pathogens. 2022 Nov 1;11(11):1283. doi: 10.3390/pathogens11111283.
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 bacteria toward a broad range of obligated bat ectoparasites in China. Here, molecular detection of 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. was detected by PCR amplification and sequencing through four gene target fragments (, , , and ITS). Accordingly, diverse 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 and multi-locus concatenated sequences both demonstrated strong phylogeny-trait associations of 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 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.
该物种已被确认为哺乳动物中的血源细菌,并且极有可能被多种吸血节肢动物媒介所携带。蝙蝠及其体外寄生虫在全球范围内被公认为这些细菌的天然宿主之一。然而,在中国,针对广泛的蝙蝠专性体外寄生虫中的该细菌的研究较少。在此,我们对该物种进行了分子检测,以调查蝙蝠体外寄生虫中的感染情况,并进行后续的系统发育分析,以进一步表征该属的进化关系。在中国西南部云南省的10个捕获地点,共收集了434只蝙蝠体外寄生虫,涉及四种节肢动物,即蝙蝠螨、蝙蝠蜱、蝙蝠跳蚤和蝙蝠蝇(进一步分为传统的似蝇蝙蝠蝇和无翅蝙蝠蝇)。通过对四个基因靶片段(、、和ITS)进行PCR扩增和测序来检测该物种。据此,发现了多种该物种,包括已被确认的物种和新基因型,它们在几个地理区域具有高流行率。基于和多位点串联序列的系统发育分析均表明,来自蝙蝠及其寄生节肢动物的该物种具有很强的系统发育-性状关联,这表明发生了宿主转换,并强调了这些体外寄生虫潜在的连接媒介作用。然而,该物种在蝙蝠和血寄生虫种群中的维持和传播以及对人类的溢出风险尚未完全了解,这需要针对这些哺乳动物及其体外寄生虫进行深入的实验研究。