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Huang F, Li X, Ye B, Zhou Y, Dang Z, Tang W, Wang L, Zhang H, Chui W, Kui J. Characterization of the Complete Mitochondrial Genome and Phylogenetic Analyses of Eurytrema coelomaticum (Trematoda: Dicrocoeliidae). Genes (Basel) 2023; 14:2199. [PMID: 38137020 PMCID: PMC10743053 DOI: 10.3390/genes14122199] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
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 20~23 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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Affiliation(s)
- Fuqiang Huang
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Xin Li
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Bijin Ye
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Yule Zhou
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Zhisheng Dang
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention (Chinese Center for Tropical Diseases Research), Key Laboratory of Parasite and Vector Biology, National Health Commission of the People’s Republic of China (NHC), World Health Organization (WHO) Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - Wenqiang Tang
- State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Lhasa 850002, China
- Tibet Academy of Agriculture and Animal Husbandry Sciences, Lhasa 850009, China
| | - Long Wang
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Haoji Zhang
- School of Life Science and Engineering, Foshan University, Foshan 528225, China; (X.L.)
| | - Wenting Chui
- Animal Disease Prevention and Control Center of Qinghai Province, Xining 810003, China
| | - Jun Kui
- Huangzhong District Animal Husbandry and Veterinary Station, Xining 811600, China
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Thang TN, Thuy PD, Lan NTK, Doanh PN, Duyen DTH, Ichikawa-Seki M. Morphological and molecular characterization of Eurytrema spp. Looss, 1907 detected in domestic water buffaloes and cattle in northern Vietnam. J Vet Med Sci 2023; 85:929-936. [PMID: 37407444 PMCID: PMC10539816 DOI: 10.1292/jvms.23-0191] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023] Open
Abstract
Eurytrema spp. are pancreatic flukes belonging to the Dicrocoeliidae family. They are the cause of neglected diseases in Vietnam and are responsible for economic losses in ruminant production, particularly in water buffaloes and cattle. Eurytrema spp. have been widely reported in several Asian countries. Recently, morphological and molecular analyses to discriminate Eurytrema spp. have been conducted in Brazil, China, Bangladesh, Nepal, and Indonesia; however, similar analyses have not been performed in Vietnam. In the present study, we identified Eurytrema flukes collected from water buffaloes and cattle in northern Vietnam based on their morphology. Morphometric analyses were conducted on 15 samples each of Eurytrema cladorchis and Eurytrema coelomaticum. Representative samples from both species were selected for molecular analyses, and the nucleotide sequences of the 18S ribosomal RNA (18S rRNA) gene and internal transcribed spacer 2 (ITS2) were determined. Phylogenetic analyses based on 18S rRNA sequences revealed that E. cladorchis from Vietnam belongs to the same clade as that from Bangladesh. Similarly, E. coelomaticum isolates from Vietnam and China belonged to the same clade. Both clades were isolated from E. pancreaticum. This is the first study to describe the coexistence of E. cladorchis and E. coelomaticum in Vietnam and the first report of the ITS2 nucleotide sequence for E. coelomaticum, which can be used for molecular species discrimination.
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Affiliation(s)
- Tran Nhat Thang
- Faculty of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen City, Vietnam
| | - Pham Dieu Thuy
- Faculty of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen City, Vietnam
| | - Nguyen Thi Kim Lan
- Faculty of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen City, Vietnam
| | - Pham Ngoc Doanh
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Duong Thi Hong Duyen
- Faculty of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen City, Vietnam
| | - Madoka Ichikawa-Seki
- Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, Morioka, Japan
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Ranaraja DMAE, Mahakapuge TAN, Thilakarathne DS, Dharmasuriya JYC, Rajapakse RPVJ. Hepatic trematode Platynosomum sp. (Dicrocoeliidae) from a domestic cat in Colombo, Sri Lanka: Case report and molecular identification. Vet Parasitol Reg Stud Reports 2022; 34:100762. [PMID: 36041797 DOI: 10.1016/j.vprsr.2022.100762] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 05/29/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Platynosomum is a digenean trematode causing hepatobiliary disease in cats in tropical and subtropical regions. The presence of Platynosomum species in Sri Lanka has not been previously reported or investigated. In the current study, we report a clinical case of a cat suffering from hepatic and biliary complications. Fine-needle aspiration of the biliary extract revealed a large number of parasite eggs, and the morphological and molecular identification of eggs was carried out. Molecular phylogenetics was performed using the nuclear ribosomal Internal Transcribed Spacer 2 (ITS2) and a portion of a mitochondrially encoded gene; Cytochrome C Oxidase subunit 1 (COX1). Through a combination of history, clinical signs, blood reports, ultrasound scanning, light microscopy of eggs from biliary aspirate and molecular studies, the disease was confirmed as parasitism caused by a Platynosomum like species. The Platynosomum species in Sri Lanka is phylogenetically related to Platynosomum illiciens reported from Costa Rica, Central America. This case emphasizes the importance of future studies in Sri Lanka regarding the prevalence and distribution of Platynosomum among cat populations. Further, the inclusion of feline platynosomiasis in the differential diagnoses list for hepatobiliary diseases is required.
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Affiliation(s)
| | - Thilini Anupama Nanayakkarawasam Mahakapuge
- Division of Veterinary Parasitology, Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka
| | - Dulari Samanthika Thilakarathne
- Division of Veterinary Parasitology, Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka
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Pinto HA, Cruz OMS, López-Hernández D, Mati VLT, Martins NRS. Acute infection with Platynosomum illiciens (Trematoda: Dicrocoeliidae) as a clinically relevant and potentially fatal disease in Falco sparverius (Aves: Falconidae) in Brazil. Vet Parasitol Reg Stud Reports 2022; 31:100726. [PMID: 35569908 DOI: 10.1016/j.vprsr.2022.100726] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 01/31/2022] [Accepted: 03/23/2022] [Indexed: 06/15/2023]
Abstract
Platynosomum illiciens is a dicrocoeliid trematode from the biliary tract of warm-blooded vertebrates (felines, primates, marsupials, and birds) reported in different parts of the world. Although the veterinary relevance of platynosomosis in mammals, especially in domestic felines, has been increasingly evidenced in the scientific literature, studies involving avian disease caused by P. illiciens are comparatively scarce. In the present study, a female specimen of the American kestrel, Falco sparverius L., found dead, in November 2019, in Brazil, was necropsied. Parietal biliary effusion in the celomatic cavity was observed, suggesting biliary transudation and gallbladder stasis, which possibily preceded the distension and rupture of gallbladder noted during necropsy. In the microscopic analysis of the bile content, small trematodes were found and characterized as immature stages of Platynosomum after the morphological study. Partial sequences of the cox-1 gene enabled the identification of P. illiciens, with 100% similarity with previously sequenced sympatric isolates from mammals. The finding of immature specimens in a ruptured gallbladder strongly suggests a role for the parasite in biliary flow dysfunction, indicating acute platynosomosis as a clinically relevant and potentially fatal condition that has not yet been discussed.
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Affiliation(s)
- Hudson A Pinto
- Laboratório de Biologia de Trematoda, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, P.O. Box 486, 30123-970 Belo Horizonte, Minas Gerais, Brazil.
| | - Olivia M S Cruz
- Laboratório de Biologia de Trematoda, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, P.O. Box 486, 30123-970 Belo Horizonte, Minas Gerais, Brazil
| | - Danimar López-Hernández
- Laboratório de Biologia de Trematoda, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, P.O. Box 486, 30123-970 Belo Horizonte, Minas Gerais, Brazil
| | - Vitor L T Mati
- Departamento de Medicina, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Nelson R S Martins
- Laboratório de Doenças das Aves, Department of Preventive Veterinary Medicine, Veterinary School, Universidade Federal de Minas Gerais, Brazil
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Hildebrand J, Pulis EE, Tkach VV. Redescription and phylogenetic relationships of the rare Lyperosomum sarothrurae Baer, 1959 (Digenea: Dicrocoeliidae). Acta Parasitol 2015. [PMID: 26204008 DOI: 10.1515/ap-2015-0052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lyperosomum sarothrurae Baer, 1959 is a rare dicrocoeliid described based on a single specimen from Belgian Congo, now Democratic Republic of the Congo, and never reported again. The original description lacked several important details of the species morphology. This work provides morphological redescription of Lyp. sarothrurae based on specimens from Kibale National Park, Uganda which is about 200 kilometres from the type locality. Results of re-examination of the holotype are also provided. Morphology of Lyp. sarothrurae shows some characteristics intermediate between those of the species rich genus Lyperosomum Looss, 1899 and Megacetabulum Oshmarin, 1964 that includes only 3 species. Due to the lack of clear morphological differences between the two genera, Megacetabulum is considered here as a junior synonym of Lyperosomum. Molecular phylogenetic analysis including Lyp. sarothrurae and all currently available partial sequences of the nuclear ribosomal 28S RNA gene of dicrocoeliid species is also included and its results are discussed.
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Zheng YD, Luo XN, Shi CH, Zong RQ, Jing ZZ, Cai XP. [Molecular relationship of Eurytrema coelmaticum inferred from 18S rRNA sequence]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2006; 24:345-8. [PMID: 17361813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVE To elucidate the taxonomic position of Eurytrema coelmaticum by using molecular technology. METHODS 18S rRNA fragment was amplified from E. coelmaticum genomic DNA by specific conservative primers and sequenced. Homology and phylogenic tree of 18S rRNA sequences between E. coelmaticum and other Dicrocoeliidae trematodes were analyzed and constructed by DNAStar and MEGA3 respectively, and their evolutionary relationship was determined. RESULTS E. coelmaticum 18S rRNA sequence was with high homology to those from Dicrocoelium dendriticum, Lyperosomum collurionis and Brachylecithum lobatum. Among them, the diversity of E. coelmaticum from D. dendriticum was 2.42%, and that from L. collurionis was 1.75%; D. dendriticum and B. lobatum were closer in evolution only with 1.09% diversity. CONCLUSION For Dicrocoeliidae trematodes, classification based on 18S rRNA target is valid and the sequences are highly conservative. E. coelmaticum is evolutionarily closer to L. collurionis than to D. dendriticum and B. lobatum.
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Affiliation(s)
- Ya-dong Zheng
- Key Laboratory of Veterinary Parasitology of Gansu Province, State Key Laboratory of Veterinary Etiological Biology, CAAS, Lanzhou 730046, China
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