Rickettsia raoultii and Rickettsia sibirica in ticks from the long-tailed ground squirrel near the China–Kazakhstan border
Rickettsia raoultii and Rickettsia sibirica in ticks from the long-tailed ground squirrel near the China–Kazakhstan border
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DOI：
10.1007/s10493-019-00349-5
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发表时间：
2019-02
影响因子：
2.2
通讯作者：
Shuo Zhao;Meihua Yang;Mengmeng Jiang;Bin Yan;Shanshan Zhao;Wumei Yuan;Baoju Wang;S. Hornok;Yuanzhi Wang
中科院分区：
文献类型：
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作者：
Shuo Zhao;Meihua Yang;Mengmeng Jiang;Bin Yan;Shanshan Zhao;Wumei Yuan;Baoju Wang;S. Hornok;Yuanzhi Wang
斑点热群 (SFG) 立克次体可引起人类、家畜和野生动物感染。迄今为止，尚未报告长尾地松鼠（Spermophilus undulatus）的硬蜱中存在立克次体病原体。共采集蜱成虫50只，若虫48只。分布于中国西北边陲地区。蜱种（根据形态和分子特征鉴定）包括Dermacentor nuttalli、Dermacentor silvarum和Ixodes kaiseri。基于细胞色素氧化酶亚基 I (COI) 单倍型分析，I.凯瑟里来自S。 undulatus属于祖先。此外，通过 PCR 扩增和六种遗传标记测序，分析所有蜱样本中是否存在立克次体。拉氏立克次体和西伯利亚立克次体西伯利亚亚种均出现在蜱成虫和若虫中。纳塔利安德 D.西尔瓦鲁姆。西伯利亚立克次体西伯利亚亚种也在 anI 中检测到。 kaiseriaadult.Dermacentor silvarumandI。 kaiseri 首次在 S 上被发现。波状。拉氏立克次体和R.两种立克次体和一种硬蜱分别检测到了西伯利亚亚种西伯利亚亚种，表明这些立克次体是由硬蜱感染在中哈边境地区传播的。波状。
Spotted fever group (SFG) rickettsiae cause infection in humans, domestic animals and wildlife. To date, no rickettsial agents have been reported in hard ticks from the long-tailed ground squirrel (Spermophilus undulatus). A total of 50 adult ticks and 48 nymphs were collected fromS. undulatusin the border region of northwestern China. Tick species (identified according to morphological and molecular characteristics) includedDermacentor nuttalli, Dermacentor silvarumandIxodes kaiseri. Based on the cytochromecoxidase subunit I (COI) haplotype analysis,I. kaiserifromS. undulatusbelongs to an ancestral. In addition, all tick samples were analyzed for the presence of rickettsiae by PCR amplification and sequencing of six genetic markers.Rickettsia raoultiiandRickettsia sibiricasubsp.sibiricawere shown to occur in adults and nymphs ofD. nuttalliandD. silvarum. Rickettsia sibiricasubsp.sibiricawas also detected in anI. kaiseriadult.Dermacentor silvarumandI. kaiseriwere found for the first time onS. undulatus. Rickettsia raoultiiandR. sibiricasubsp.sibiricawere detected in twoDermacentorand oneIxodesspecies, respectively, suggesting that these rickettsiae circulate in the region of the China-Kazakhstan border by hard ticks infestingS. undulatus.