The complete mitochondrial genome of the dwarf tapeworm Hymenolepis nana-a neglected zoonotic helminth
文献类型: 外文期刊
第一作者: Cheng, Tian
作者: Cheng, Tian;Liu, Guo-Hua;Song, Hui-Qun;Zhu, Xing-Quan;Cheng, Tian;Lin, Rui-Qing;Cheng, Tian;Lin, Rui-Qing;Zhu, Xing-Quan
作者机构:
关键词: Tapeworm;Hymenolepis nana;Mitochondrial genome;Phylogenetic analyses
期刊名称:PARASITOLOGY RESEARCH ( 影响因子:2.289; 五年影响因子:2.403 )
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收录情况: SCI
摘要: Hymenolepis nana, commonly known as the dwarf tapeworm, is one of the most common tapeworms of humans and rodents and can cause hymenolepiasis. Although this zoonotic tapeworm is of socio-economic significance in many countries of the world, its genetics, systematics, epidemiology, and biology are poorly understood. In the present study, we sequenced and characterized the complete mitochondrial (mt) genome of H. nana. The mt genome is 13,764 bp in size and encodes 36 genes, including 12 protein-coding genes, 2 ribosomal RNA, and 22 transfer RNA genes. All genes are transcribed in the same direction. The gene order and genome content are completely identical with their congener Hymenolepis diminuta. Phylogenetic analyses based on concatenated amino acid sequences of 12 protein-coding genes by Bayesian inference, Maximum likelihood, and Maximum parsimony showed the division of class Cestoda into two orders, supported the monophylies of both the orders Cyclophyllidea and Pseudophyllidea. Analyses of mt genome sequences also support the monophylies of the three families Taeniidae, Hymenolepididae, and Diphyllobothriidae. This novel mt genome provides a useful genetic marker for studying the molecular epidemiology, systematics, and population genetics of the dwarf tapeworm and should have implications for the diagnosis, prevention, and control of hymenolepiasis in humans.
分类号: R53
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