Detection of Rickettsia spp. and Anaplasma ovis in Melophagus ovinus from southern Xinjiang, China

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY
Si-Ang Li, Liu Zhang, Zheng Li, Hao-Nan Song, Ze-Wei Que, Si-Yu Zhao, Ying-Ying Li, Yu-Ling Guo, Jun-Yuan Wu
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Abstract

Melophagus ovinus is a hematophagous insect that is distributed worldwide and plays a crucial role in transmitting disease-causing pathogens. From June 2021 to March 2022, a total of 370 M. ovinus were collected from 11 sampling points in southern Xinjiang, China. The specimens were identified using morphological and molecular analyses. Rickettsia spp. and Anaplasma ovis were detected from all the samples using seven Rickettsia-specific genetic markers and the msp-4 gene of A. ovis. Approximately 11% of the M. ovinus specimens were positive for Rickettsia spp., and Candidatus Rickettsia barbariae was the most predominant species (35/41; 85.4%), while R. massiliae was least prevalent (6/41; 14.6%). Approximately 10.5% (39/370) of the M. ovinus specimens were positive for A. ovis of genotype III, which was co-detected with Candidatus R. barbariae in M. ovinus (3/370; 0.8%). To the best of our knowledge, this is the first report of the detection of R. massiliae and Candidatus R. barbariae in M. ovinus globally. The detection and control of insect-borne diseases originating from M. ovinus should be strengthened in southern Xinjiang, an area important to animal husbandry and production.

Abstract Image

南疆羊食蚊中立克次体和羊无原体的检测。
绵羊甜瓜是一种分布于世界各地的吸血昆虫,在传播致病病原体方面发挥着至关重要的作用。2021年6月至2022年3月 从中国南疆的11个采样点采集了绵羊分枝杆菌。标本通过形态学和分子分析进行鉴定。使用7个立克次体特异性遗传标记和A.ovis的msp-4基因从所有样本中检测到立克次氏体和绵羊无浆体。大约11%的羊分枝杆菌标本对立克次体属呈阳性。Candidatus Rickettsia barbariae是最主要的物种(35/41;85.4%),而马氏乳杆菌最不常见(6/41;14.6%)。大约10.5%(39/370)的羊分枝菌标本对基因型III的A.ovis呈阳性,与Candidatus R.barbariae在绵羊中共同检测到(3/370;0.8%)。据我们所知,这是全球首次在绵羊中检测到R.masiliae和CandidatusR.barbaria。新疆南疆是畜牧业和生产的重要地区,应加强对绵羊分枝杆菌虫媒疾病的检测和控制。
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来源期刊
Medical and Veterinary Entomology
Medical and Veterinary Entomology 农林科学-昆虫学
CiteScore
3.70
自引率
5.30%
发文量
65
审稿时长
12-24 weeks
期刊介绍: Medical and Veterinary Entomology is the leading periodical in its field. The Journal covers the biology and control of insects, ticks, mites and other arthropods of medical and veterinary importance. The main strengths of the Journal lie in the fields of: -epidemiology and transmission of vector-borne pathogens changes in vector distribution that have impact on the pathogen transmission- arthropod behaviour and ecology- novel, field evaluated, approaches to biological and chemical control methods- host arthropod interactions. Please note that we do not consider submissions in forensic entomology.
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