Characterization of the Complete Mitochondrial Genome and Phylogenetic Analyses of Eurytrema coelomaticum (Trematoda: Dicrocoeliidae)
文献类型： 外文期刊
作者： Huang, Fuqiang 1 ; Li, Xin 1 ; Ye, Bijin 1 ; Zhou, Yule 1 ; Dang, Zhisheng 2 ; Tang, Wenqiang 3 ; Wang, Long 1 ; Zhang, Haoji 1 ; Chui, Wenting 5 ; Kui, Jun 6 ;
作者机构： 1.Foshan Univ, Sch Life Sci & Engn, Foshan 528225, Peoples R China
2.Chinese Ctr Dis Control & Prevent, Natl Ctr Int Res Trop Dis, World Hlth Org WHO Collaborating Ctr Trop Dis, Natl Hlth Commiss Peoples Republ China NHC,Natl In, Shanghai 200025, Peoples R China
3.State Key Lab Hulless Barley & Yak Germplasm Resou, Lhasa 850002, Peoples R China
4.Tibet Acad Agr & Anim Husb Sci, Lhasa 850009, Peoples R China
5.Anim Dis Prevent & Control Ctr Qinghai Prov, Xining 810003, Peoples R China
6.Huangzhong Dist Anim Husb & Vet Stn, Xining 811600, Peoples R China
关键词： Eurytrema coelomaticum; mitochondrial DNA; phylogenetic analysis; genome
期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN：
年卷期： 2023 年 14 卷 12 期
页码：
收录情况： SCI
摘要： Eurytrema coelomaticum, a pancreatic fluke, is recognized as a causative agent of substantial economic losses in ruminants. This infection, commonly referred to as eurytrematosis, is a significant concern due to its detrimental impact on livestock production. However, there is a paucity of knowledge regarding the mitochondrial genome of E. coelomaticum. In this study, we performed the initial sequencing of the complete mitochondrial genome of E. coelomaticum. Our findings unveiled that the mitochondrial genome of E. coelomaticum spans a length of 15,831 bp and consists of 12 protein-coding genes, 22 tRNA genes, two rRNA genes, and two noncoding regions. The A+T content constituted 62.49% of the genome. Moreover, all 12 protein-coding genes of E. coelomaticum exhibit the same arrangement as those of E. pancreaticum and other published species belonging to the family Dicrocoeliidae. The presence of a short string of additional amino acids (approximately 20 similar to 23 aa) at the N-terminal of the cox1 protein in both E. coelomaticum and E. pancreaticum mitochondrial genomes has contributed to the elongation of the cox1 gene in genus Eurytrema, surpassing that of all previously sequenced Dicrocoeliidae. The phylogenetic analysis displayed a close relationship between E. coelomaticum and E. pancreaticum, along with a genus-level association between Eurytrema and Lyperosomum. These findings underscore the importance of mitochondrial genomic data for comparative studies of Dicrocoeliidae and even Digenea, offering valuable DNA markers for future investigations in the systematic, epidemiological, and population genetic studies of this parasite and other digenean trematodes.
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