Cui Nannan, Wang Shiyi, Wang Ziqi, Hornok Sándor, Wang Huiqian, Lu Xiaobo, Liu Gang, Wang Yuanzhi
Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, The XPCC, School of Medicine, Shihezi University, Shihezi City, Xinjiang Uygur Autonomous Region 832002, China.
Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary.
Int J Parasitol Parasites Wildl. 2024 Mar 13;23:100923. doi: 10.1016/j.ijppaw.2024.100923. eCollection 2024 Apr.
Eurasian lynx () is widely distributed in various habitats in Asia and Europe, and it may harbor multiple pathogens. Currently, the information on protozoan infection in Eurasian lynx is scarce. In this study, we performed nested polymerase chain reaction (nPCR) analysis to detect intestinal protozoan infection in three dead Eurasian lynxes, in northwestern China. Three dead Eurasian lynxes, an adult female (#1), an adult male (#2), and a cub male (#3), were sampled in West Junggar Mountain, the northwestern region of Xinjiang Uyghur Autonomous Region. The intestine samples were analyzed using nPCR. We used primers targeting the cytochrome C oxidase subunit I gene () for detection of and species and targeting the small subunit 18 S ribosomal RNA gene () for detection of species. The nPCR-positive products were sequenced, aligned, and phylogenetically analyzed. Three intestinal protozoa, , , and , were found in three Eurasian lynxes. The intestine sample of Eurasian lynx #2 was detected with . and . . In addition, . was only found in the intestine sample of Eurasian lynx #3. To the best of our knowledge, . and . were detected in Eurasian lynx for the first time. In addition, . was firstly found in Eurasian lynx in China. These findings extend our knowledge of the geographical distribution and host range of intestinal protozoa.
欧亚猞猁()广泛分布于亚洲和欧洲的各种栖息地,可能携带多种病原体。目前,关于欧亚猞猁原生动物感染的信息很少。在本研究中,我们进行了巢式聚合酶链反应(nPCR)分析,以检测中国西北部三只死亡欧亚猞猁的肠道原生动物感染情况。在新疆维吾尔自治区西北部的准噶尔西部山地采集了三只死亡的欧亚猞猁样本,一只成年雌性(#1)、一只成年雄性(#2)和一只雄性幼崽(#3)。使用nPCR对肠道样本进行分析。我们使用靶向细胞色素C氧化酶亚基I基因()的引物来检测和物种,使用靶向小亚基18 S核糖体RNA基因()的引物来检测物种。对nPCR阳性产物进行测序、比对和系统发育分析。在三只欧亚猞猁中发现了三种肠道原生动物,、和。欧亚猞猁#2的肠道样本检测到了、和。此外,仅在欧亚猞猁#3的肠道样本中发现了。据我们所知,和首次在欧亚猞猁中被检测到。此外,首次在中国的欧亚猞猁中发现。这些发现扩展了我们对肠道原生动物地理分布和宿主范围的认识。