Li R, Wang HM, Liu GH, Tu Y, Deng YP. Characterization of the complete mitochondrial genome of the fluke of turdus,
Plagiorchis elegans, and phylogenetic implications.
Exp Parasitol 2022;
242:108387. [PMID:
36170911 DOI:
10.1016/j.exppara.2022.108387]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 09/03/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022]
Abstract
Plagiorchis elegans (Trematoda: Digenea) is mainly parasitic in the intestines of vertebrate animals, including humans, causing irreversible pathological damage and herd-spherical influences. However, little information is available about its molecular epidemiology, population genetics, and phylogeny. In the present study, we sequenced, assembled, and annotated the complete mitochondrial (mt) genome of P. elegans. Combining with the available mitochondrial data of subclass Digenea, phylogenetic analysis was performed based on Bayesian inference (BI). The results showed that the complete length of P. elegans is 13,862 bp, including 12 PCGs, 2 ribosomal RNAs (rRNAs), 22 transfer RNAs (tRNAs), and one non-coding gene (NCR). There was an obvious A + T content from 61.0% to 71.3% and the values of the Ka/Ks ratio ranged from 0.119 (cox1) to 1.053 (nad6). In the BI analysis, different from previous studies, phylogenetic analysis showed genus Glypthelmins was paraphyletic rather than monophyletic and had a closer relationship with Plagiorchis and Orientocreadium. Additionally, the BI tree also presented that the genus Echinostoma was monophyletic. Our results provided molecular data in the family Plagiorchiidae proposing new insight within Xiphidiata and Echinostomata.
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