Folia Parasitologica 67:035 (2020) | DOI: 10.14411/fp.2020.035
Wenyonia gracilis sp. n. (Cestoda: Caryophyllidea) from Synodontis zambezensis (Siluriformes: Mochokidae): the first native caryophyllidean tapeworm from southern Africa
- 1 Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa;
- 2 Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, České Budĕjovice, Czech Republic
Parasitological examination of freshwater fishes of the Phongolo River in north-eastern KwaZulu-Natal, South Africa resulted in the discovery and morphological and molecular characterisation of a new species of Wenyonia Woodland, 1923 (Cestoda: Caryophyllidea). The new species from the plain squeaker, Synodontis zambezensis Peters (Siluriformes: Mochokidae), is morphologically most similar to Wenyonia acuminata Woodland, 1923, a species reported from three species of Synodontis in north-eastern, western and central Africa (Sudan, Nigeria, Democratic Republic of the Congo). Both these species are markedly different from congeners by having a nematoform body and a digitiform scolex. Wenyonia gracilis sp. n. differs from W. acuminata in its general body size, length and width of main body regions (testicular and uterine regions), a posterior extension of the testes into the uterine region, numerous postovarian vitelline follicles filling the entire medulla, eggs c. 1/3 larger in size, and a scolex with an apical introvert but devoid of longitudinal furrows and a well-defined base. Wenyonia gracilis is the seventh species in the genus and the first autochthonous caryophyllidean ever reported and described from southern Africa (south of the Zambezi River).
Keywords: Tapeworms, fish parasites, new species, molecular characterisation, taxonomy, biodiversity, biogeography, South Africa
Received: July 14, 2020; Revised: August 26, 2020; Accepted: November 12, 2020; Published online: December 7, 2020 Show citation
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References
- Akinsanya B., Hassan A.A., Adeogun A.O. 2008: Gastrointestinal helminth parasites of the fish Synodontis clarias (Siluriformes: Mochokidae) from Lekki Lagoon, Lagos, Nigeria. Rev. Biol. Trop. 56: 2021-2026. Go to original source... Go to PubMed...
- Brabec J., Scholz T., Králová-Hromadová I., Bazsalovicsová E., Olson P.D. 2012: Substitution saturation and nuclear paralogs of commonly employed phylogenetic markers in the Caryophyllidea, an unusual group of non-segmented tapeworms (Platyhelminthes). Int. J. Parasitol. 42: 259-267. Go to original source... Go to PubMed...
- Bruwer E.E., van Der Bank F. 2002: Biochemical genetic markers (hybrizymes) to identify Synodontis zambezensis × S. nigromaculatus hybrids (Teleostei: Mochokidae). Biochem. Syst. Ecol. 30: 641-649. Go to original source...
- Caira J. N., Jensen K., Holsinger K.E. 2003: On a new index of host specificity. In: C. Combes and J. Jourdane (Eds.), Taxonomy, Ecology and Evolution of Metazoan Parasites. Presses Universitaires de Perpignan, Perpignan, pp. 161-201.
- Carvalho Schaeffner C.C. 2018: Chapter 5: Host-parasite list. In: T. Scholz, M.P.M. Vanhove, N. Smit, Z. Jayasundera and M. Gelnar (Eds.), A Guide to the Parasites of African Freshwater Fishes. ABC Taxa 18, Royal Belgian Institute of Natural Sciences, Brussels, pp. 361-402.
- Froese R., Pauly D. 2020: FishBase. World Wide Web electronic publication. www.fishbase.org. Accessed 21 April 2020.
- Jirsová D., Štefka J., Jirků M. 2017: Discordant population histories of host and its parasite: a role for ecological permeability of extreme environment? PLoS ONE 12: e0175286. Go to original source... Go to PubMed...
- Kearse M., Moir R., Wilson A., Stones-Havas S., Cheung M., Sturrock S., Buxton S., Cooper A., Markowitz S., Duran C., Thierer T., Ashton B., Meintjes P., Drummond A. 2012: Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics 28: 1647-1649. Go to original source... Go to PubMed...
- Khalil L.F., Polling L. (Eds.) 1997: Check List of the Helminth Parasites of African Freshwater Fishes. University of the North, Pietersburg, 185 pp.
- Kumar S., Stecher G., Tamura K. 2016: MEGA7: Molecular Evolutionary Genetics Analysis 7.0 for bigger datasets. Mol. Biol. Evol. 33: 1870-1874. Go to original source... Go to PubMed...
- Littlewood D.T.J., Curini-Galletti M., Herniou E.A. 2000: The interrelationships of Proseriata (Platyhelminthes: Seriata) tested with molecules and morphology. Mol. Phylogenet. Evol. 16: 449-466. Go to original source... Go to PubMed...
- Lockyer A.E., Olson P.D., Littlewood D.T.J. 2003: Utility of complete large and small subunit rRNA genes in resolving the phylogeny of the Neodermata (Platyhelminthes): implications and a review of the cercomer theory. Biol. J. Linn. Soc. 78: 155-171. Go to original source...
- Mackiewicz J.S. 1972: Caryophyllidea (Cestoidea): a review. Exp. Parasitol. 31: 417-512. Go to original source... Go to PubMed...
- Mackiewicz J.S. 1982: Caryophyllidea (Cestoidea): perspectives. Parasitology 84: 397-417. Go to original source...
- Oros M., Choudhury A., Scholz T. 2017: A common Eurasian fish tapeworm, Caryophyllaeides fennica (Cestoda) in western North America: further evidence of 'amphi-pacific' vicariance in freshwater fish parasites. J. Parasitol. 103: 486-496. Go to original source... Go to PubMed...
- Pleijel F., Jondelius U., Norlinder E., Nygren A., Oxelman B., Schander C., Sundberg P., Tholleson M. 2008: Phylogenies without roots? A plea for the use of vouchers in molecular phylogenetic studies. Mol. Phylogenet. Evol. 48: 369-371. Go to original source... Go to PubMed...
- Schaeffner B.C., Jirků M., Mahmoud Z.N., Scholz T. 2011: Revision of Wenyonia Woodland, 1923 (Cestoda: Caryophyllidea) from catfishes (Siluriformes) in Africa. Syst. Parasitol. 79: 83-107. Go to original source... Go to PubMed...
- Scholz T., Kuchta, R. 2017: A digest of fish tapeworms. Vie et Millieu 67: 43-58.
- Scholz T., Kuchta, R. 2018: Chapter 4.6. Cestoda. In: T. Scholz, M.P.M. Vanhove, N. Smit, Z. Jayasundera and M. Gelnar (Eds.), A Guide to the Parasites of African Freshwater Fishes. ABC Taxa 18, Royal Belgian Institute of Natural Sciences, Brussels, pp. 269-286.
- Scholz T., Oros M. 2017: Caryophyllidea van Beneden in Carus, 1863. In: J.N. Caira and K. Jensen (Eds.), Planetary Biodiversity Inventory (2008-2017): Tapeworms from Vertebrate Bowels ofthe Earth. University of Kansas, Natural History Museum, Special Publication No. 25, pp. 47-64.
- Scholz T., Tavakol S.., Halajian A., Luus-Powell W.J. 2015: The invasive fish tapeworm Atractolytocestus huronensis (Cestoda), a parasite of carp, colonises Africa. Parasitol. Res. 114: 3521-3524. Go to original source... Go to PubMed...
- Scholz T., Vanhove M.P.M., Smit N., Jayasundera Z., Gelnar M. (Eds.) 2018: A Guide to the Parasites of African Freshwater Fishes. ABC Taxa 18, Royal Belgian Institute of Natural Sciences, Brussels, 424 pp.
- Scholz T., Waeschenbach A., Oros A., Brabec J., Littlewood D.T.J. 2021: Phylogenetic reconstruction of early diverging tapeworms (Cestoda: Caryophyllidea) reveals ancient radiations in vertebrate hosts and biogeographic regions. Int. J. Parasitol. (in press). Go to original source... Go to PubMed...
- Skelton P. 2001: A Complete Guide to the Freshwater Fishes of Southern Africa. Struik Publishers, Cape Town, 395 pp.
- Smit N.J., Basson L., Vanhove M.P.M., Scholz T. 2018: History of fish parasitology in Africa. In: T. Scholz, M.P.M. Vanhove, N. Smit, Z. Jayasundera and M. Gelnar (Eds.), A Guide to the Parasites of African Freshwater Fishes. ABC Taxa 18, Royal Belgian Institute of Natural Sciences, Brussels, pp. 16-29.
- Sullivan J.P., Lundberg J.G., Hardman M. 2006: A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences. Mol. Phylogenet. Evol. 41: 636-662. Go to original source... Go to PubMed...
- Tkach V.V., Grabda-Kazubska B., Pawlowski J., Swiderski Z. 1999: Molecular and morphological evidence for close phylogenetic affinities of the genera Macrodera, Leptophallus, Metaleptophallus and Paralepoderma (Digenea, Plagiorchiata). Acta Parasitol. 44: 170-179.
- Tkach V.V., Littlewood D.T.J., Olson P.D., Kinsella J.M., Swiderski Z. 2003: Molecular phylogenetic analysis of the Microphalloidea Ward, 1901 (Trematoda: Digenea). Syst. Parasitol. 56: 1-15. Go to original source... Go to PubMed...
- Ukoli F.M.A. 1972: Occurrence, morphology and systematics of caryophyllaeid cestodes of the genus Wenyonia Woodland, 1923 from fishes in River Niger, Nigeria. J. West Afr. Sci. Assoc. 17: 49-67.
- Van As J.G. 2015: A brief history of freshwater fish parasitology in southern Africa. Afr. Zool. 50: 93-107. Go to original source...
- Van der Auwera G., Chapelle S., de Wachter R. 1994: Structure of the large ribosomal subunit RNA of Phytophthora megasperma, and phylogeny of the oomycetes. FEBS Lett. 338: 133-136. Go to original source... Go to PubMed...
- Vanhove M.P.M. 2018: Evolutionary parasitology of African freshwater fishes and its implications for the sustainable management of aquatic resources. In: T. Scholz, M.P.M. Vanhove, N. Smit, Z. Jayasundera and M. Gelnar (Eds.), A Guide to the Parasites of African Freshwater Fishes. ABC Taxa 18, Royal Belgian Institute of Natural Sciences, Brussels, pp. 403-412.
- Werle E., Schneider C., Renner M., Völker M., Fiehn W. 1994: Convenient single-step, one tube purification of PCR products for direct sequencing. Nucl. Acids Res. 22: 4354-4355. Go to original source... Go to PubMed...
- Woodland W.N.F. 1923: On some remarkable new forms of Caryophyllaeidae from the Anglo-Egyptian Sudan, and a revision of the families of the Cestodaria. Q. J. Microsc. Sci. 67: 435-472. Go to original source...
- Woodland W.N.F. 1937: Some cestodes from Sierra Leone. I. On Wenyonia longicauda, sp. n., and Proteocephalus bivitellatus, sp. n. Proc. Zool. Soc. Lond. 4: 931-937. Go to original source...