Genotype identification and phylogenetic analysis of Enterocytozoon bieneusi in farmed black goats (Capra hircus) from China's Hainan Province

文献类型： 外文期刊

第一作者： Zhou, Huan-Huan

作者： Zhou, Huan-Huan;Ma, Tian-Ming;Lu, Gang;Zhao, Wei;Zhou, Huan-Huan;Ma, Tian-Ming;Lu, Gang;Zhao, Wei;Zhou, Huan-Huan;Ma, Tian-Ming;Lu, Gang;Zhao, Wei;Zheng, Xin-Li;Cao, Zong-Xi;Chao, Zhe;Wei, Li-Min;Liu, Quan-Wei;Sun, Rui-Ping;Wang, Feng;Zhang, Yan;Qi, Meng

作者机构：

关键词： Enterocytozoon bieneusi; Genotype; ITS region; Goats; China

期刊名称：PARASITE （ 影响因子：3.0； 五年影响因子：3.046 ）

ISSN： 1252-607X

年卷期： 2019 年 26 卷

页码：

收录情况： SCI

摘要： Enterocytozoon bieneusi is an important pathogen commonly found in humans and animals. Farmed animals with close contact to humans are important hosts of E. bieneusi. The role of goats in the transmission of E. bieneusi, however, remains unclear. In this study, 341 fresh fecal samples of black goats were collected from five locations in Hainan Province, China. Enterocytozoon bieneusi was identified and genotyped by sequences of the internal transcribed spacer (ITS) region. Phylogenetic analysis was performed by constructing a neighbor-joining tree of the ITS gene sequences. The average prevalence of E. bieneusi in black goats was 24.0% (82/341) with rates ranging from 6.3% (4/63) to 37.2% (32/86) across the locations (chi(2) = 17.252, p < 0.01). Eight genotypes of E. bieneusi were identified, including six known genotypes: CHG5 (n = 47); CHG3 (n = 23); CHG2 (n = 4); CM21 (n = 3); D (n = 2); and AHG1 (n = 1), and two novel genotypes termed HNG-I (n = 1) and HNG-II (n = 1). In the phylogenetic tree, genotype D was clustered into Group 1 and the other identified genotypes were included in Group 2. This represents the first report identifying E. bieneusi in black goats from Hainan Province, with a high prevalence and wide occurrence demonstrated. The two new genotypes identified provide additional insights into the genotypic variations in E. bieneusi. Due to the small percentage of zoonotic genotypes in these animals, there is minimal risk of zoonotic transmission of E. bieneusi.

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