数字农科院2.0

Molecular characteristics and genetic diversity of Fasciola hepatica from sheep in Xinjiang, China

文献类型： 外文期刊

作者： Wang Xifeng;Zhang Kai;Zhang Guowu;Li Zhiyuan;Shang Yunxia;Ning Chengcheng;Ji Chunhui;Qiao Jun;Meng Qingling;Cai Xuepeng

作者机构：

关键词： F;hepatica;cox1;nad1;genetic diversity;population structure

期刊名称： JOURNAL OF VETERINARY RESEARCH

ISSN： 2450-7393

年卷期： 2022 年

页码：

收录情况： SCIE（2022版）

摘要： Introduction Fasciola hepatica is a trematode infecting ruminants worldwide and occasionally affecting other animal species, including humans. It causes significant economic losses. Geographic distribution and patterns of infection must be considered before control and management measures are developed for this parasite. DNA molecular markers are useful for the identification of flukes and elucidation of their genetic evolution. Therefore, the population structure of F. hepatica was studied using this method in sheep in Xinjiang, China. Material and Methods The molecular characteristics, genetic relationships within the population and dispersal patterns of F. hepatica isolates were analysed based on the cox1 and nad1 genes. The population structure of F. hepatica from three regions of Xinjiang was explored and a neutrality test was conducted. Results The cox1 and nad1 genes have 21 and 42 variable sites, respectively, which can be classified into 34 and 33 haplotypes. Median-joining network and phylogenetic tree analyses showed that there was no significant variation in F. hepatica isolates between the three geographical regions. Analysis of variance revealed that the genetic variation of F. hepatica was mainly present within the populations. The neutrality test indicated that the populations were relatively stable but the Hami population may have undergone short-term expansion. Conclusion This study revealed for the first time the molecular characteristics, genetic diversity and dispersal patterns of F. hepatica isolates from sheep in Xinjiang, thus providing new insights into the genetic variation and haplotype diversity of F. hepatica from indigenous sheep.

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