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Hong S, Park B, Kim G, Choi EH, Hwang UW. Possible species discrimination of a blotched nerite Nerita albicilla with their distribution pattern and demographic history in the Indo-Pacific. Sci Rep 2023; 13:4545. [PMID: 36941299 PMCID: PMC10027673 DOI: 10.1038/s41598-023-31004-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023] Open
Abstract
The blotched nerite Nerita albicilla (Linnaeus 1758) is distributed in intertidal areas of the Indo-Pacific. In South Korea, it has been found only in the southernmost region of Jeju Island so far. Owing to its limited distribution, it can be a promising intertidal species helpful for monitoring global climate change effects in the Korean Peninsula. We performed population genetic analyses based on 393 COI haplotypes from 697 N. albicilla, including 167 from this study and 530 from public databases. The results showed that there are two distinct genetic lineages in N. albicilla: PAIO (Palearctic, Australasia, Indo-Malay, and Oceania) and Afrotropic lineages. DNA barcoding gap analyses indicated that the two lineages could be differentiated into two different species: N. albicilla (PAIO) and N. originalis sp. nov. (Afrotropic) (3.96%). Additionally, it was revealed that their divergence time was ca. 5.96 Ma and dramatic diversification of COI haplotypes occurred during the late Pliocene and Pleistocene. The results of MDA, BSP, and neutrality test implied recent population size expansion, which was estimated to be ca. 250 Ka. Finally, we discussed whether the observation of N. originalis sp. nov. in South Korea is due to the northward migration through ocean currents caused by global warming or due to artificial activity through marine transportation.
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Affiliation(s)
- Seonghyeon Hong
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Bia Park
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Gyeongmin Kim
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, 41566, Republic of Korea
- School of Life Sciences, Graduate School, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Eun Hwa Choi
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, 41566, Republic of Korea
- Phylomics Inc., Daegu, 41910, Republic of Korea
| | - Ui Wook Hwang
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, 41566, Republic of Korea.
- Phylomics Inc., Daegu, 41910, Republic of Korea.
- Institute for Korean Herb-Bio Convergence Promotion, Kyungpook National University, Daegu, 41566, Republic of Korea.
- School of Industrial Technology Advances, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Abbas I, El-Alfy ES, Saleh S, Tamponi C, Varcasia A. Global epidemiology and molecular biology of Taenia multiceps: a comparative meta-analysis and in silico analysis study. Parasitology 2022; 149:1607-1622. [PMID: 35957580 PMCID: PMC11010139 DOI: 10.1017/s0031182022001123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 11/06/2022]
Abstract
In the present study, all published data on the epidemiology and molecular characters of Taenia multiceps were systematically collected from relevant databases (e.g. PubMed, Scopus, National Center for Biotechnology Information), and combined in various statistical and genetic analyses as a contribution to a better understanding of the epidemiology of this ubiquitous taeniid worldwide. While 5.8% of the key hosts (dogs) from various countries had T. multiceps, grey wolves displayed the highest prevalence (21.6%) among the definitive hosts. Small ruminants are the main intermediate hosts and carry the coenuri in various locations, but most commonly in the central nervous system (CNS). Cerebral coenuri were confirmed in 53% of sheep exhibiting neurological symptoms, and infected animals often had only a single coenurus in the brain. Sheep had a higher prevalence (8.8%) of CNS coenuri than goats (5.8%); however, extra-CNS coenuri were detected more frequently in goats than in sheep. In either case, the difference between sheep and goats was statistically insignificant. Analysis of 233 partial cytochrome oxidase subunit I nucleotide sections for T. multiceps revealed high haplotype and low nucleotide diversities. Fifty-one haplotypes were detected circulating in 6 geographic populations. China, Iran and Turkey had 2 major haplotypes, whereas Italy and Egypt shared 3. Haplotypes from Greece circulate worldwide, and displayed similar gene flow values when compared with the other populations. There were no distinct patterns for haplotype distribution in relation to the infected hosts or coenuri locations. The existence of genetic variants in T. multiceps was highlighted, but needs further studies.
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Affiliation(s)
- Ibrahim Abbas
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - El-Sayed El-Alfy
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Somaya Saleh
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Claudia Tamponi
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Antonio Varcasia
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
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Varcasia A, Tamponi C, Ahmed F, Cappai MG, Porcu F, Mehmood N, Dessì G, Scala A. Taenia multiceps coenurosis: a review. Parasit Vectors 2022; 15:84. [PMID: 35279199 PMCID: PMC8917661 DOI: 10.1186/s13071-022-05210-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/17/2022] [Indexed: 12/27/2022] Open
Abstract
Taenia multiceps is a taeniid cestode that inhabits the small intestines of both wild and domestic carnivores. The larval stage, Coenurus cerebralis, is typically found in the central nervous system (CNS) of a wide range of livestock and, to a lesser extent, in the extra-cerebral tissues of sheep and goats. This review covers all aspects of the life cycle of T. multiceps and its epidemiology, molecular characterization, pathogenesis, diagnosis, therapy, control and zoonotic potential. Coenurosis caused by the larval stage of T. multiceps has a worldwide distribution and is often fatal in intermediate hosts, which can result in substantial economic losses in livestock farming. Molecular characterization using the mitochondrial genes cytochrome c oxidase subunit 1 and nicotinamide adenine dinucleotide dehydrogenase subunit 1 of different T. multiceps populations has revealed significant genetic variation and the presence of three major haplotypes. The disease mostly affects young sheep and is referred to as either acute or chronic coenurosis. Acute coenurosis occurs as a result of oncospheres migrating through the CNS, while chronic coenurosis occurs as a consequence of the coenurus maturing, which causes displacement and pressure atrophy of brain tissue. Non-cerebral coenurosis has been most commonly reported in goats. The best diagnostic method for cerebral coenurosis involves the interpretation of clinical signs with accurate localization of the cyst using diagnostic imaging techniques. A vaccine based on recombinant oncosphere antigens has proved to be an effective tool against T. multiceps infection in sheep. Additionally, use of anthelmintics during the parasite's migration stages reduces the development of cysts in the sheep brain. Surgery is considered the most effective method for the treatment of cerebral coenurosis in small ruminants, but is often not carried out because of the limited finances of many sheep and goat breeders. However, coenurosis can also be controlled effectively through preventative measures, such as anthelmintic treatment of dogs and the proper disposal of intermediate host carcasses. The parasite is also zoonotic, and cases of coenurosis have been reported in humans with coenuri located in the brain, spinal cord and eyes.
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Affiliation(s)
- Antonio Varcasia
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy.
| | - Claudia Tamponi
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Fahad Ahmed
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Maria Grazia Cappai
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Francesca Porcu
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Naunain Mehmood
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy.,Department of Zoology, University of Sargodha, Sargodha, Pakistan
| | - Giorgia Dessì
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Antonio Scala
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
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Al Malki JS, Hussien NA. Molecular characterization and phylogenetic studies of Echinococcus granulosus and Taenia multiceps coenurus cysts in slaughtered sheep in Saudi Arabia. Open Life Sci 2021; 16:1252-1260. [PMID: 34901458 PMCID: PMC8627918 DOI: 10.1515/biol-2021-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 11/25/2022] Open
Abstract
Taeniids, consisting of two genera Echinococcus and Taenia, are obligatory tapeworms of mammals, and their pathogenicity was due to infection with larval stages. Hydatid (the larval stage of Echinococcus granulosus) and coenurus (the larval stage of Taenia multiceps) cysts are prevalent in domestic, wild ruminants, livestock, swine, and dogs, and accidentally they could also be found in humans. They lead to different clinical manifestations that cause economic loss in livestock and human morbidity. In Saudi Arabia, few studies were performed on hydatid and coenurus cyst genetic variations. The main goal of the present study was to identify E. granulosus and T. multiceps cyst isolates collected from slaughtered Harri sheep in Saudi Arabia by partial sequencing with PCR amplification of the cytochrome C oxidase 1 (COX1) gene. Molecular and phylogenetic evaluation based on COX1 sequences indicated that cyst isolates belong to E. granulosus and T. multiceps, respectively, successfully submitted in NCBI Genbank. Molecular characterization showed a low nucleotide diversity with two submitted isolates of coenurus with related isolates of Genbank. Conversely, E. granulosus isolates showed higher nucleotide diversity. The reported data could serve as a foundation for future molecular epidemiological and biological studies.
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Affiliation(s)
- Jamila S Al Malki
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Nahed Ahmed Hussien
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
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