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Nguyen HHT, Van Nguyen H, Van Hien H, Chinh NN, Truong VTT, Van Kim V, Hoai TD, Duc PP, Greiman SE, Nguyen HM. Marine fish parasites in the Cat Ba Archipelago, Vietnam: the results of 2010-2023 field surveys. Syst Parasitol 2024; 101:20. [PMID: 38351396 DOI: 10.1007/s11230-023-10145-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 12/19/2023] [Indexed: 02/16/2024]
Abstract
Between 2010 and 2023, a longitudinal study was undertaken to uncover the diversity of the parasite fauna of marine fishes in the Cat Ba Archipelago, a world biosphere reserve, in Vietnam. A total of 1,042 specimens representing 80 different fish species were collected and examined. Of these, 68 fish species, represented by 994 specimens (95.39%), were infected with parasites. A total of 162 parasitic species were discovered, including 54 trematodes, 37 monogeneans, 27 crustaceans, 15 myxozoans, 10 acanthocephalans, 10 nematodes, 7 cestodes, and 2 hirudineans. Over the course of the survey, twenty new species were described, including 7 acanthocephalans and 13 trematodes. Additionally, twenty species were recorded for the first time from the Cat Ba Archipelago and twenty-two species had new host records reported. The prevalence and mean intensity of parasite infection were found to be unaffected by season. These data on the parasitic fauna of Cat Ba Archipelago not only expand our knowledge of the diversity of Vietnam, but also provide strong baseline data for measuring future change resulting from environmental perturbations.
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Affiliation(s)
- Hoang-Ha Thi Nguyen
- Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Van Nguyen
- Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hoang Van Hien
- Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Ngoc Chinh
- Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | - Van Van Kim
- Faculty of Fisheries, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Truong Dinh Hoai
- Faculty of Fisheries, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Phuc Pham Duc
- Center for Public Health and Ecosystem Research, Hanoi University of Public Health, Hanoi, Vietnam
- Institute of Environmental Health and Sustainable Development, Hanoi, Vietnam
| | | | - Hung Manh Nguyen
- Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Amin OM, Rodríguez SM, Farrer S, Fierro P, Garcés C, Rivera F, D’Elía G. Review of the concept of Profilicollis Meyer, 1931 with a description of Profilicollis rancoensis n. sp. (Acanthocephala: Polymorphidae) from the freshwater crab, Aegla abtao Schmitt, 1942 (Decapoda: Anomura) in Chile, with a key to congeneric species. Parasite 2023; 30:42. [PMID: 37855712 PMCID: PMC10586241 DOI: 10.1051/parasite/2023042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/29/2023] [Indexed: 10/20/2023] Open
Abstract
Profilicollis rancoensis n. sp. is the tenth species of Profilicollis Meyer, 1931 which includes 9 other species mostly known from marine decapod crabs and shore birds. Cystacanths of P. rancoensis are described from the dominant freshwater crab Aegla abtao in Ranco Lake, Chile and are morphologically distinguished from cystacanths of the 9 other species based on a combination of 4 characters. These are body size, number of proboscis hook rows, number of hooks per row, and length of the largest anterior 2-4 hooks. Male and female cystacanths of P. rancoensis are 2.10-3.33 mm long having an ovoid proboscis with 14 rows of 6-7 hooks per row, with the largest anterior 2-4 hooks being 105-110 micrometers long; the anterior trunk has many small spines in 70-80 concentric rings, each with 50-60 spines around them; hook roots are simple, directed posteriorly, about as long as the blades anteriorly with unremarkable anterior manubria; the cephalic ganglion are in mid-receptacle just anterior to the level of the anterior trunk; the lemnisci are long and slender; the testes are in the anterior trunk, posterior trunk, or one in each; the primordia of 2 tubular cement glands are evident; strong bundles of fibers link the anterior and posterior trunk; and the posterior trunk has a corrugated surface cuticula. Molecular analysis (COI and 18S) sequences coincided with the morphology and support its taxonomy. The phylogenetic profile revealed that P. rancoensis n. sp. fell into the Profilicollis clade. Both sequences showed low genetic variation, and three different haplotypes were found. The new species was more closely related to P. botulus (Van Cleave, 1916) Witenberg, 1932 than to other Profilicollis species.
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Affiliation(s)
- Omar M. Amin
- Institute of Parasitic Diseases 11445 E. Via Linda 2-419 Scottsdale AZ 85259 USA
| | - Sara M. Rodríguez
- Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción Alonso de Ribera 2850 Concepción CP 4030000 Chile
- Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O’Higgins Avenida Viel 1497 Santiago de Chile CP 8370993 Chile
| | - Solinus Farrer
- Department of Biology, Brigham Young University 1114 MLBM Provo UT 84602 USA
| | - Pablo Fierro
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja s/n Valdivia CP 509000 Chile
- Núcleo Milenio de Salmones Invasores (INVASAL), Barrio Universitario s/n Concepción CP 403000 Chile
| | - Cristóbal Garcés
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja s/n Valdivia CP 509000 Chile
| | - Felipe Rivera
- Electron Microscopy Facility, Brigham Young University Provo UT 84602 USA
| | - Guillermo D’Elía
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja s/n Valdivia CP 509000 Chile
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Gao JW, Yuan XP, Jakovlić I, Wu H, Xiang CY, Xie M, Song R, Xie ZG, Wu YA, Ou DS. The mitochondrial genome of Heterosentis pseudobagri (Wang & Zhang, 1987) Pichelin & Cribb, 1999 reveals novel aspects of tRNA genes evolution in Acanthocephala. BMC Genomics 2023; 24:95. [PMID: 36864372 PMCID: PMC9979467 DOI: 10.1186/s12864-023-09177-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 02/10/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Acanthocephala is a clade of obligate endoparasites whose mitochondrial genomes (mitogenomes) and evolution remain relatively poorly understood. Previous studies reported that atp8 is lacking from acanthocephalan mitogenomes, and that tRNA genes often have nonstandard structures. Heterosentis pseudobagri (Arhythmacanthidae) is an acanthocephalan fish endoparasite for which no molecular data are currently available, and biological information is unavailable in the English language. Furthermore, there are currently no mitogenomes available for Arhythmacanthidae. METHODS We sequenced its mitogenome and transcriptome, and conducted comparative mitogenomic analyses with almost all available acanthocephalan mitogenomes. RESULTS The mitogenome had all genes encoded on the same strand and unique gene order in the dataset. Among the 12 protein-coding genes, several genes were highly divergent and annotated with difficulty. Moreover, several tRNA genes could not be identified automatically, so we had to identify them manually via a detailed comparison with orthologues. As common in acanthocephalans, some tRNAs lacked either the TWC arm or the DHU arm, but in several cases, we annotated tRNA genes only on the basis of the conserved narrow central segment comprising the anticodon, while the flanking 5' and 3' ends did not exhibit any resemblance to orthologues and they could not be folded into a tRNA secondary structure. We corroborated that these are not sequencing artefacts by assembling the mitogenome from transcriptomic data. Although this phenomenon was not observed in previous studies, our comparative analyses revealed the existence of highly divergent tRNAs in multiple acanthocephalan lineages. CONCLUSIONS These findings indicate either that multiple tRNA genes are non-functional or that (some) tRNA genes in (some) acanthocephalans might undergo extensive posttranscriptional tRNA processing which restores them to more conventional structures. It is necessary to sequence mitogenomes from yet unrepresented lineages and further explore the unusual patterns of tRNA evolution in Acanthocephala.
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Affiliation(s)
- Jin-Wei Gao
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Xi-Ping Yuan
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Ivan Jakovlić
- grid.32566.340000 0000 8571 0482State Key Laboratory of Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000 China
| | - Hao Wu
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Chuan-Yu Xiang
- grid.32566.340000 0000 8571 0482State Key Laboratory of Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, 730000 China
| | - Min Xie
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Rui Song
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China.
| | - Zhong-Gui Xie
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Yuan-An Wu
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
| | - Dong-Sheng Ou
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153 Hunan China
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Gao JW, Yuan XP, Wu H, Xiang CY, Xie M, Song R, Chen ZY, Wu YA, Ou DS. Mitochondrial phylogenomics of Acanthocephala: nucleotide alignments produce long-branch attraction artefacts. Parasit Vectors 2022; 15:376. [PMID: 36261865 PMCID: PMC9583589 DOI: 10.1186/s13071-022-05488-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/16/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Classification of the Acanthocephala, a clade of obligate endoparasites, remains unresolved because of insufficiently strong resolution of morphological characters and scarcity of molecular data with a sufficient resolution. Mitochondrial genomes may be a suitable candidate, but they are available for a small number of species and their suitability for the task has not been tested thoroughly. METHODS Herein, we sequenced the first mitogenome for the large family Rhadinorhynchidae: Micracanthorhynchina dakusuiensis. These are also the first molecular data generated for this entire genus. We conducted a series of phylogenetic analyses using concatenated nucleotides (NUC) and amino acids (AAs) of all 12 protein-coding genes, three different algorithms, and the entire available acanthocephalan mitogenomic dataset. RESULTS We found evidence for strong compositional heterogeneity in the dataset, and Micracanthorhynchina dakusuiensis exhibited a disproportionately long branch in all analyses. This caused a long-branch attraction artefact (LBA) of M. dakusuiensis resolved at the base of the Echinorhynchida clade when the NUC dataset was used in combination with standard phylogenetic algorithms, maximum likelihood (ML) and Bayesian inference (BI). Both the use of the AA dataset (BI-AAs and ML-AAs) and the CAT-GTR model designed for suppression of LBA (CAT-GTR-AAs and CAT-GTR-NUC) at least partially attenuated this LBA artefact. The results support Illiosentidae as the basal radiation of Echinorhynchida and Rhadinorhynchidae forming a clade with Echinorhynchidae and Pomporhynchidae. The questions of the monophyly of Rhadinorhynchidae and its sister lineage remain unresolved. The order Echinorhynchida was paraphyletic in all of our analyses. CONCLUSIONS Future studies should take care to attenuate compositional heterogeneity-driven LBA artefacts when applying mitogenomic data to resolve the phylogeny of Acanthocephala.
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Affiliation(s)
- Jin-Wei Gao
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
| | - Xi-Ping Yuan
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
| | - Hao Wu
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
| | - Chuan-Yu Xiang
- State Key Laboratory of Grassland Agro-Ecosystems and College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Min Xie
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
| | - Rui Song
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China.
| | - Zhong-Yuan Chen
- Hunan Provincial Key Laboratory for Molecular Immunity Technology of Aquatic Animal Diseases, College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, 415000, Hunan, China
| | - Yuan-An Wu
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
| | - Dong-Sheng Ou
- Hunan Fisheries Science Institute, 728 Shuanghe Rd, Kaifu District, Changsha, 410153, Hunan, China
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Rodríguez SM, Amin OM, Heckmann RA, Sharifdini M, D'Elía G. Phylogeny and Life Cycles of the Archiacanthocephala with a Note on the Validity of Mediorhynchus gallinarum. Acta Parasitol 2022; 67:369-379. [PMID: 34618302 DOI: 10.1007/s11686-021-00472-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/14/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE The molecular profile of specimens of Mediorhynchus gallinarum (Bhalero, 1937) collected from chickens, Gallus gallus L. in Indonesia was analysed. The aim of this study was to assess the phylogenetic position of species of Mediorhynchus within the order Giganthorhynchida. METHODS We used one mitochondrial gene (cytochrome oxidase 1) and one nuclear gene (18S ribosomal RNA) to infer phylogenetic relationships of class Archiacanthocephala. RESULTS The COI and 18S rDNA genes sequences showed that M. gallinarum had low genetic variation and that this species is sister to Mediorhynchus africanus Amin, Evans, Heckmann, El-Naggar, 2013. The phylogenetic relationships of the Class Archiacanthocephala showed that it is not resolved but, however, were mostly congruent using both genes. A review of host-parasite life cycles and geographic distributions of Archiacanthocephala indicates that mainly small mammals and birds are definitive hosts, while termites, cockroaches, and millipedes are intermediate hosts. CONCLUSIONS While the intermediate hosts have wide geographic distributions, the narrow distribution of the definitive hosts limit the access of archiacanthocephalans to a wider range of prospective hosts. Additional analyses, to increase taxonomic and character sampling will improve the development of a robust phylogeny and provide more stable classification. The results presented here contribute to better understanding of the ecological and evolutionary relationships that allow the host-parasite co-existence within the class Archiacanthocephala.
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Affiliation(s)
- Sara M Rodríguez
- Facultad de Ciencias, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Isla Teja s/n, Valdivia, Chile.
| | - Omar M Amin
- Institute of Parasitic Diseases, 11445 E. Via Linda 2-419, Scottsdale, AZ, 85259, USA
| | | | - Meysam Sharifdini
- Cellular and Molecular Research Center, Guilan University of Medical Sciences, Rasht, Iran
- Department of Medical Parasitology and Mycology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Guillermo D'Elía
- Facultad de Ciencias, Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Isla Teja s/n, Valdivia, Chile
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Amin OM, Rodríguez SM, Rubtsova N, Heckmann RA, Peña C, Castro T, Rivera F, D'Elía G. A comparative assessment of the morphology of Profilicollis altmani (Acanthocephala, Polymorphidae) from crustaceans and shore birds in Peru, with special notes on hook elemental analysis (EDXA), SEM imaging, histopathology, and molecular profile. Parasite 2022; 29:9. [PMID: 35191831 PMCID: PMC8862641 DOI: 10.1051/parasite/2022005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 01/17/2022] [Indexed: 11/14/2022] Open
Abstract
The morphology of cystacanths and adults of Profilicollis altmani (Perry, 1942) Van Cleave, 1947 (Polymorphidae) were studied from the Pacific mole crab Emerita analoga (Stimpson) (Crustacea, Hippidae) and Belcher's gull Larus belcheri (Vigors) (Aves, Laridae), respectively, in Peru. Comparative morphometrics with accounts of other populations of P. altmani from elsewhere off the Pacific and Atlantic coasts of North and South America revealed marked intraspecific population variations. We report scanning electron micrographs (SEM) of new features, not before noted or captured in line drawings by earlier observers. We further present microscope images that reveal internal details not previously reported or possible to see with SEM. Energy dispersive X-ray analysis (EDXA) revealed unusual patterns in the chemistry of proboscis hooks especially the high sulfur and diminished phosphorous and calcium in hook tips and low sulfur and high levels of phosphorous and calcium at mid hooks. The size and shape of all hooks of the cystacanths are reported for the first time. Histopathological studies in L. belcheri from Peru are also included. Cystacanths of P. altmani from California were also analyzed for molecular patterns and compared with other sequences reported from other locations. The molecular data and the analysis of our new sequences of cytochrome oxidase I (COI) showed that haplotypes of P. altmani had low genetic variation; the species is not geographically structured, and within its clade no monophyletic group is formed.
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Affiliation(s)
- Omar M Amin
- Institute of Parasitic Diseases, 11445 E. Via Linda 2-419, Scottsdale, AZ 85259, USA
| | - Sara M Rodríguez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja s/n, Valdivia 509000, Chile
| | - Nataliya Rubtsova
- Institute of Parasitic Diseases, 11445 E. Via Linda 2-419, Scottsdale, AZ 85259, USA
| | | | - César Peña
- Departamento de Acuicultura, Facultad de Oceanografía y Pesquería, Universidad Nacional Federico Villarreal, Francia 726, Miraflores, Lima 15007, Perú
| | - Teresa Castro
- Laboratorio de Patobiología Acuática, Dirección General de Investigaciones en Acuicultura, Instituto del Mar del Perú (IMARPE), Esquina Gamarra y General Valle s/n. Casilla Postal 22, Callao, Perú
| | - Felipe Rivera
- Electron Microscopy Facility, Brigham Young University, Provo, UT 84602, USA
| | - Guillermo D'Elía
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Isla Teja s/n, Valdivia 509000, Chile
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Halajian A, Smales L, Heckmann R, Amakali AM, Tjipute M, Wilhelm MR, Luus-Powell WJ. Corynosoma australe and Bolbosoma vasculosum (Polymorphidae: Acanthocephala) from Arctocephalus pusillus pusillus (Otariidae) and Argyrosomus spp. (Sciaenidae) from the Namibian Coast of Africa. COMP PARASITOL 2020. [DOI: 10.1654/1525-2647-87.1.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ali Halajian
- DSI-NRF SARCHl Chair (Ecosystem Health), Department of Biodiversity, University of Limpopo, Sovenga, 0727, South Africa
| | - Lesley Smales
- Parasitology Section, South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia
| | - Richard Heckmann
- Department of Biology, Brigham Young University, Provo, Utah 84602, U.S.A
| | - Annette M. Amakali
- Department of Fisheries and Aquatic Sciences, University of Namibia, Sam Nujoma Campus, P. O. Box 462, Henties Bay, Namibia
| | - Martin Tjipute
- Department of Fisheries and Aquatic Sciences, University of Namibia, Sam Nujoma Campus, P. O. Box 462, Henties Bay, Namibia
| | - Margit R. Wilhelm
- Department of Fisheries and Aquatic Sciences, University of Namibia, Sam Nujoma Campus, P. O. Box 462, Henties Bay, Namibia
| | - Wilmien J. Luus-Powell
- DSI-NRF SARCHl Chair (Ecosystem Health), Department of Biodiversity, University of Limpopo, Sovenga, 0727, South Africa
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