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Chen HX, Yu ZJ, Ma J, Zhao CH, Cao FQ, Li L. Morphology, genetic characterization and phylogeny of Moniliformis tupaia n. sp. (Acanthocephala: Moniliformidae) from the northern tree shrew Tupaia belangeri chinensis Anderson (Mammalia: Scandentia). Parasitology 2024; 151:440-448. [PMID: 38525532 PMCID: PMC11044067 DOI: 10.1017/s0031182024000271] [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: 12/26/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/26/2024]
Abstract
A new species of Moniliformis, M. tupaia n. sp. is described using integrated morphological methods (light and scanning electron microscopy) and molecular techniques (sequencing and analysing the nuclear 18S, ITS, 28S regions and mitochondrial cox1 and cox2 genes), based on specimens collected from the intestine of the northern tree shrew Tupaia belangeri chinensis Anderson (Scandentia: Tupaiidae) in China. Phylogenetic analyses show that M. tupaia n. sp. is a sister to M. moniliformis in the genus Moniliformis, and also challenge the systematic status of Nephridiacanthus major. Moniliformis tupaia n. sp. represents the third Moniliformis species reported from China.
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Affiliation(s)
- Hui-Xia Chen
- Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
- Ecological Postdoctoral Research Mobile Station, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
| | - Zhi-Jun Yu
- Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
- Ecological Postdoctoral Research Mobile Station, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
- Hebei Research Center of the Basic Discipline Cell Biology, Ministry of Education Key Laboratory of Molecular and Cellular Biology, 050024 Shijiazhuang, Hebei Province, P.R. China
| | - Jun Ma
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan Province 650201, P.R. China
| | - Cui-Hong Zhao
- Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
| | - Fu-Qiong Cao
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan Province 650201, P.R. China
| | - Liang Li
- Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, 050024 Shijiazhuang, Hebei Province, P.R. China
- Hebei Research Center of the Basic Discipline Cell Biology, Ministry of Education Key Laboratory of Molecular and Cellular Biology, 050024 Shijiazhuang, Hebei Province, P.R. China
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Amin OM, Chaudhary A, Sharifdini M, Singh HS. First molecular description of Neorhadinorhynchus nudus (Acanthocephala: Cavisomidae) from fish in the pacific coast of Vietnam, with notes on biogeography. Syst Parasitol 2024; 101:23. [PMID: 38407667 DOI: 10.1007/s11230-023-10139-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/11/2023] [Indexed: 02/27/2024]
Abstract
Neorhadinorhynchus nudus (Harada, 1938) Yamaguti, 1939 (Cavisomidae) was morphologically described from the frigate tuna Auxis thazard (Lacépède) (Scombridae) in Nha Trang, Pacific south Vietnam. Females of N. nudus were fully described for the first time in the Pacific. Its original inadequate description as Rhadinorhynchus nudus (Harada, 1938) was corrected in material from Fiji Island, the Red Sea and Pacific Vietnam and errors in the text and line drawings of Harada were repeated in subsequent major publications where it underwent considerable nomenclature changes. New descriptive and biogeographical notes are included. We also provided here the molecular characterization of the nuclear gene (18S) and the mitochondrial cytochrome c oxidase subunit 1 (cox1) sequence data of N. nudus. Furthermore, to elucidate the phylogenetic relationship of N. nudus within the family Cavisomidae and with other isolates were performed incorporating nuclear (18S) and mitochondrial (cox1) sequence data using maximum likelihood (ML) and Bayesian inference (BI). The phylogenetic results showed that N. nudus has a relationship with other isolates of the same species and the median-joining network showed the pattern of haplotypes that reflected the structure of the populations.
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Affiliation(s)
- Omar M Amin
- Institute of Parasitic Diseases, 11445 E. Via Linda, # 2-419, Scottsdale, AZ, 85259, USA.
| | - Anshu Chaudhary
- Molecular Taxonomy Laboratory, Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India
| | - Meysam Sharifdini
- Department of Medical Parasitology and Mycology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Hridaya S Singh
- Molecular Taxonomy Laboratory, Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, 250004, India
- Maa Shakumbhari University, Punwarka, Saharanpur, Uttar Pradesh, 247120, India
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Lisitsyna O, Barcak D, Orosova M, Fan CK, Oros M. Acanthocephalans of marine and freshwater fishes from Taiwan with description of a new species. Folia Parasitol (Praha) 2023; 70:2023.021. [PMID: 38167244 DOI: 10.14411/fp.2023.021] [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: 04/12/2023] [Accepted: 10/06/2023] [Indexed: 01/05/2024]
Abstract
During an ichthyoparasitological survey in 2017-2019, six species of acanthocephalans were found among Taiwan's freshwater (Cypriniformes: Xenocyprididae, Cyprinidae) and marine fishes (Scombriformes: Scombridae, Trichiuridae; Anabantiformes: Channidae; Carangaria/misc: Latidae): Micracanthorhynchina dakusuiensis (Harada, 1938), Rhadinorhynchus laterospinosus Amin, Heckmann et Ha, 2011, Pallisentis rexus Wongkham et Whitfield, 1999, Longicollum sp., Bolbosoma vasculosum (Rudolphi, 1819), and one new species, Micracanthorynchina brevelemniscus sp. n. All species are morphologically characterised and illustrated using light and scanning electron microscopy. The finding of R. laterospinosus, P. rexus and B. vasculosum is the first record for these species in Taiwan. Micracanthorhynchina brevelemniscus is similar to Micracanthorhynchina motomurai (Harada, 1935) and M. dakusuiensis in proboscis armature but differs from M. motomurai by larger eggs (53-59 × 15-16 µm vs 40 × 16 µm) and by the number of cement glands (6 vs 4) and from M. dakusuiensis by shorter body length (2.2-2.9 mm vs 4.0 mm in males and 2.9-4.1 mm vs 7.6 mm in females), by the location of the organs of the male reproductive system (from level of the posterior third of the proboscis receptacle in M. brevelemniscus vs in the posterior half of the trunk in M. dakusuiensis), and by length of lemnisci (lemnisci shorter than the proboscis receptacle vs lemnisci longer than the proboscis receptacle). Phylogenetic analyses of almost complete 18S rRNA gene revealed paraphyly of the family Rhadinorhynchidae suggested in previous studies. Micracanthorhynchina dakusuiensis and M. brevelemniscus formed a strongly supported cluster, which formed the earliest diverging branch to the rest of the rhadinorhynchids and transvenids.
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Affiliation(s)
- Olga Lisitsyna
- Institute of Parasitology, Slovak Academy of Sciences, Kosice, Slovak Republic
- Department of Parasitology, Schmalhausen Institute of Zoology, Ukrainian National Academy of Sciences, Kiev, Ukraine
| | - Daniel Barcak
- Institute of Parasitology, Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Martina Orosova
- Institute of Parasitology, Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Chia-Kwung Fan
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan *Address for correspondence: Mikulas Oros, Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, Kosice 040 01, Slovak Republic. E-mail: ; Chia-Kwung Fan, Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. E-mail
| | - Mikulas Oros
- Institute of Parasitology, Slovak Academy of Sciences, Kosice, Slovak Republic
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Sromek L, Ylinen E, Kunnasranta M, Maduna SN, Sinisalo T, Michell CT, Kovacs KM, Lydersen C, Ieshko E, Andrievskaya E, Alexeev V, Leidenberger S, Hagen SB, Nyman T. Loss of species and genetic diversity during colonization: Insights from acanthocephalan parasites in northern European seals. Ecol Evol 2023; 13:e10608. [PMID: 37869427 PMCID: PMC10585441 DOI: 10.1002/ece3.10608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Studies on host-parasite systems that have experienced distributional shifts, range fragmentation, and population declines in the past can provide information regarding how parasite community richness and genetic diversity will change as a result of anthropogenic environmental changes in the future. Here, we studied how sequential postglacial colonization, shifts in habitat, and reduced host population sizes have influenced species richness and genetic diversity of Corynosoma (Acanthocephala: Polymorphidae) parasites in northern European marine, brackish, and freshwater seal populations. We collected Corynosoma population samples from Arctic, Baltic, Ladoga, and Saimaa ringed seal subspecies and Baltic gray seals, and then applied COI barcoding and triple-enzyme restriction-site associated DNA (3RAD) sequencing to delimit species, clarify their distributions and community structures, and elucidate patterns of intraspecific gene flow and genetic diversity. Our results showed that Corynosoma species diversity reflected host colonization histories and population sizes, with four species being present in the Arctic, three in the Baltic Sea, two in Lake Ladoga, and only one in Lake Saimaa. We found statistically significant population-genetic differentiation within all three Corynosoma species that occur in more than one seal (sub)species. Genetic diversity tended to be high in Corynosoma populations originating from Arctic ringed seals and low in the landlocked populations. Our results indicate that acanthocephalan communities in landlocked seal populations are impoverished with respect to both species and intraspecific genetic diversity. Interestingly, the loss of genetic diversity within Corynosoma species seems to have been less drastic than in their seal hosts, possibly due to their large local effective population sizes resulting from high infection intensities and effective intra-host population mixing. Our study highlights the utility of genomic methods in investigations of community composition and genetic diversity of understudied parasites.
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Affiliation(s)
- Ludmila Sromek
- Department of Marine Ecosystems Functioning, Institute of OceanographyUniversity of GdanskGdyniaPoland
| | - Eeva Ylinen
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandJoensuuFinland
| | - Mervi Kunnasranta
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandJoensuuFinland
- Natural Resources Institute FinlandJoensuuFinland
| | - Simo N. Maduna
- Department of Ecosystem in the Barents RegionNorwegian Institute of Bioeconomy ResearchSvanvikNorway
| | - Tuula Sinisalo
- Department of Biological and Environmental SciencesUniversity of JyväskyläJyväskyläFinland
| | - Craig T. Michell
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandJoensuuFinland
- Red Sea Research CenterKing Abdullah University of Science and TechnologyJeddahSaudi Arabia
| | | | | | - Evgeny Ieshko
- Institute of Biology, Karelian Research CentreRussian Academy of SciencesPetrozavodskRussia
| | | | | | - Sonja Leidenberger
- Department of Biology and Bioinformatics, School of BioscienceUniversity of SkövdeSkövdeSweden
| | - Snorre B. Hagen
- Department of Ecosystem in the Barents RegionNorwegian Institute of Bioeconomy ResearchSvanvikNorway
| | - Tommi Nyman
- Department of Ecosystem in the Barents RegionNorwegian Institute of Bioeconomy ResearchSvanvikNorway
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Ru SS, Yang RJ, Chen HX, Kuzmina TA, Spraker TR, Li L. Morphology, molecular characterization and phylogeny of Bolbosoma nipponicum Yamaguti, 1939 (Acanthocephala: Polymorphidae), a potential zoonotic parasite of human acanthocephaliasis. Int J Parasitol Parasites Wildl 2022; 18:212-220. [PMID: 35783070 PMCID: PMC9240962 DOI: 10.1016/j.ijppaw.2022.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022]
Abstract
Human acanthocephaliasis is a rare parasitic zoonosis mainly caused by acanthocephalans belonging to the genera Acanthocephalus, Bolbosoma, Corynosoma, Macracanthorhynchus, and Moniliformis. In the present paper, the juveniles of Bolbosoma nipponicum Yamaguti, 1939 collected from the northern fur seal Callorhinus ursinus (Linnaeus) (Mammalia: Carnivora) in Alaska, USA were precisely identified based on morphological characters and genetic data. Their detailed morphology was studied using light and, for the first time, scanning electron microscopy. The molecular characterization of the nuclear genes [small ribosomal subunit (18S) and large ribosomal subunit (28S)] and the mitochondrial cytochrome c oxidase subunit 1 (cox1) sequence data of B. nipponicum are provided for the first time. Moreover, in order to clarify the phylogenetic relationships of the genus Bolbosoma and the other genera in the family Polymorphidae, phylogenetic analyses were performed integrating different nuclear (18S + ITS+28S) and mitochondrial (cox1) sequence data using maximum likelihood (ML) and Bayesian inference (BI). The phylogenetic results showed that Bolbosoma has a sister relationship with Corynosoma, and also revealed that Southwellina is sister to Ibirhynchus + Hexaglandula. Our molecular phylogeny also indicated a possible host-switch pattern during the evolution of the polymorphid acanthocephalans. The ancestors of polymorphid acanthocephalans seem to have originally parasitized fish-eating waterfowl in continental habitats, then extended to fish-eating marine birds in brackish water and marine habitats, and finally, opportunistically infected the marine mammals. Detailed morphology of the juveniles of B. nipponicum was described for the first time. Molecular characterization of the 18S, 28S and cox1 genes of B. nipponicum was provided for the first time. Molecular phylogenetic analyses showed that Bolbosoma has a sister relationship with Corynosoma.
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Ru SS, Rehman AU, Chen HX, Suleman S, Khan MS, Muhammad N, Li L. Morphology and molecular characterization of Acanthogyrus (Acanthosentis) bilaspurensis Chowhan, Gupta & Khera, 1987 (Acanthocephala: Gyracanthocephala: Quadrigyridae) from the common carp Cyprinus carpio Linnaeus (Cypriniformes: Cyprinidae) in Pakistan. Parasitol Int 2022; 90:102608. [DOI: 10.1016/j.parint.2022.102608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
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Chaudhary A, Amin OM, Heckmann R, Singh HS. The Molecular Profile of Rhadinorhynchus dorsoventrospinosus Amin, Heckmann, and Ha 2011 (Acanthocephala: Rhadinorhynchidae) from Vietnam. J Parasitol 2021; 106:418-427. [PMID: 32589731 DOI: 10.1645/18-144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Of the 46 known species of Rhadinorhynchus Lühe, 1911, only 6 species, including Rhadinorhynchus dorsoventrospinosus Amin, Heckmann, and Ha, 2011, have dorsal and ventral, as well as lateral, trunk spines in the posterior field of trunk spines. The other 5 species are Rhadinorhynchus erumei Gupta and Fatima, 1981, Rhadinorhynchus adenati (Golvan and Houin, 1964) Golvan, 1969, Rhadinorhynchus lintoni Cable and Linderoth, 1963, Rhadinorhynchus pacificus Amin, Rubtsova, and Ha, 2019, and Rhadinorhynchus multispinosus Amin, Rubtsova, and Ha, 2019. These 5 species are distinguished from R. dorsoventrospinosus by differences in proboscis hook armature, trunk spine organization, and egg size. The distinction of R. dorsoventrospinosus is further demonstrated by its molecular description. We amplified the 18S and ITS1+5.8S+ITS2 rDNA region and cytochrome c oxidase subunit 1 (COI) gene for this study. Unfortunately, no ITS1+5.8S+ITS2 gene sequences are available for comparison with other species of the genus Rhadinorhynchus. Therefore, phylogenetic trees generated from sequences of the 18S nuclear region and COI gene were analyzed for the phylogenetic position of isolates of R. dorsoventrospinosus. Rhadinorhynchus dorsoventrospinosus has been validated as a species based on comparisons of morphological (original description) and molecular features (this paper). The additional genetic data will be useful as more species are described and as more genetic material becomes available to improve taxon sampling in the genetic analysis.
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Affiliation(s)
- Anshu Chaudhary
- Molecular Taxonomy Laboratory, Department of Zoology, Chaudhary Charan Singh University, Meerut (U.P.), 250004, India
| | - Omar M Amin
- Institute of Parasitic Diseases, 11445 E. Via Linda 2-419, Scottsdale, Arizona 85259
| | - Richard Heckmann
- Department of Biology, Brigham Young University, 1114 MLBM, Provo, Utah 84602
| | - Hridaya S Singh
- Molecular Taxonomy Laboratory, Department of Zoology, Chaudhary Charan Singh University, Meerut (U.P.), 250004, India
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Song Z, Proctor H. Application of DNA barcoding and morphometric analysis in differentiating cystacanths of Polymorphus species (Acanthocephala: Polymorphidae) from central Alberta, Canada. Parasitol Res 2020; 119:3359-3368. [PMID: 32893331 DOI: 10.1007/s00436-020-06870-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/30/2020] [Indexed: 10/23/2022]
Abstract
Acanthocephalans are multi-host endoparasites, many of which use freshwater amphipods as intermediate hosts for their larval stages (e.g., cystacanths) while adults live in the intestines of vertebrates, including waterfowl. In central Alberta, Canada, several co-occurring species of the acanthocephalan genus Polymorphus use the amphipod Gammarus lacustris Sars, 1863 as an intermediate host. We applied DNA barcoding and morphometric analysis to differentiate cystacanth larvae from G. lacustris sampled from 17 Albertan water bodies. We slide-mounted specimens and measured morphological traits relating to proboscis hooks. We sequenced the standard DNA barcoding region of the mitochondrial cytochrome c oxidase subunit I gene (COI). Morphometric analysis suggested that the acanthocephalans we collected belonged to four morphologically different groups that keyed to Polymorphus contortus (Bremser, 1821) Travassos, 1926; P. marilis Van Cleave, 1939; P. paradoxus Connel et Corner, 1957; and P. strumosoides (Lundström, 1942) Amin, 2013. Our Bayesian tree based on COI sequences generally corroborated the morphological results and supported that the specimens assigned to P. cf. contortus and P. cf. strumosoides belong to two distinct species. In contrast, the Bayesian tree showed that specimens of P. cf. marilis were nested as a cluster within the P. cf. paradoxus clade. Similarly, small pairwise genetic distance (< 2%) between specimens identified as P. cf. contortus and P. cf. strumosoides suggests that they are conspecific. Future studies should use morphology and sequence data from adult acanthocephalans to assess the taxonomic identity of the cystacanth-based Polymorphus taxa. Our study is the first to provide genetic information for the four Polymorphus taxa and emphasizes the importance of applying multiple approaches to differentiate parasite species.
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Affiliation(s)
- Zhuoyan Song
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada. .,Great Lakes Institute for Environmental Research (GLIER), University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada.
| | - Heather Proctor
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada
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Zhao Q, Muhammad N, Chen HX, Ma J, Li L. Morphological and genetic characterisation of Centrorhynchus clitorideus (Meyer, 1931) (Acanthocephala: Centrorhynchidae) from the little owl Athene noctua (Scopoli) (Strigiformes: Strigidae) in Pakistan. Syst Parasitol 2020; 97:517-528. [PMID: 32776273 DOI: 10.1007/s11230-020-09930-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 07/25/2020] [Indexed: 11/25/2022]
Abstract
Centrorhynchus Lühe, 1911 is a large genus of acanthocephalans mainly parasitic in various strigiform and falconiform birds. Some species of Centrorhynchus have not been adequately described. Here, the detailed morphology of C. clitorideus (Meyer, 1931) was studied using light and, for the first time, scanning electron microscopy, based on newly collected specimens from the little owl Athene noctua (Scopoli) (Strigiformes: Strigidae) in Pakistan. Partial sequences of the 18S and 28S nuclear ribosomal RNA genes and the mitochondrial cytochrome c oxidase subunit 1 (cox1) of C. clitorideus were generated for the first time. No nucleotide variation was detected for the partial 18S and 28S regions, but 3.30% of intraspecific nucleotide divergence was found for the cox1 gene. Phylogenetic analyses based on 28S and 18S sequence data showed that C. clitorideus formed a sister relationship with Centrorhynchus sp. MGV-2005 or Centrorhynchus sp. MGV-2005 + C. microcephalus (Bravo-Hollis, 1947), respectively.
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Affiliation(s)
- Qing Zhao
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, People's Republic of China
| | - Nehaz Muhammad
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
| | - Hui-Xia Chen
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, People's Republic of China
| | - Jun Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
| | - Liang Li
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, People's Republic of China.
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Proposal of Spinulacorpus biforme (Smales, 2014) n. g., n. comb. and the Spinulacorpidae n. fam. to resolve paraphyly of the acanthocephalan family Rhadinorhynchidae Lühe, 1912. Syst Parasitol 2020; 97:477-490. [DOI: 10.1007/s11230-020-09923-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/20/2020] [Indexed: 01/01/2023]
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Amin OM, Rodríguez SM, Heckmann RA. Morphological updates and molecular description of Heterosentis holospinus Amin, Heckmann, & Ha, 2011 (Acanthocephala, Arhythmacanthidae) in the Pacific Ocean off Vietnam. Parasite 2019; 26:73. [PMID: 31855174 PMCID: PMC6921964 DOI: 10.1051/parasite/2019072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 12/05/2019] [Indexed: 11/14/2022] Open
Abstract
Heterosentis holospinus Amin, Heckmann & Ha, 2011 (Arhythmacanthidae) was first described from the striped eel catfish, Plotosus lineatus (Plotosidae) in Halong Bay, Vietnam. New morphological information, scanning electron microscope images, molecular analysis, and Energy Dispersive X-ray analysis (EDXA) of hooks of specimens of H. holospinus from a new collection from the common ponyfish, Leiognathus equulus (Leiognathidae), in Quang Binh, Gulf of Tonkin, Vietnam are reported here for the first time. Additional details of the anterior trunk cone, proboscis hooks, wholly spined trunk, duck-bill-like spines with micropores, and micropore distribution, are described. The unique metal composition of hooks (EDXA) demonstrated a considerably higher level of calcium and phosphorus but lower level of sulfur at the hook basal arch than at the hook tip and edge. An analysis of our new sequences of cytochrome oxidase 1 (COI) showed that H. holospinus had low genetic variation and two haplotypes.
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Affiliation(s)
- Omar M Amin
- Institute of Parasitic Diseases, 11445 E. Via Linda 2-419, 85259 Scottsdale, AZ, USA
| | - Sara M Rodríguez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja s/n, Valdivia, Chile
| | - Richard A Heckmann
- Department of Biology, Brigham Young University, 1114 MLBM, 84602 Provo, UT, USA
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