Echinostoma miyagawai is a species of echinostome parasite that is found in Europe,[1] Southeast Asia[2][3] and Japan.[4]
It can use multiple aquatic snail species as first intermediate host, such as Planorbis planorbis, Anisus vortex, and Radix peregra. The definitive host species include the wild duck, the tufted duck, the domestic chicken, and the brown rat.[1][3] In the definitive host it resides in the small intestine, cecum, and rectum.[3] In Thailand and Laos E. miyagawai, is more common parasite of free-living ducks than E. revolutum.[2]
Taxonomy
Genetic analysis has shown that the species can be subdivided into two different lineages; a Eurasian lineage and an Australian lineage. The latter includes individuals from Australia and the Americas. Genetic exchange within these lineages over such long distances is possible through distribution by birds.[2] However, it has also been suggested that the Eurasian lineage might actually present a distinct species.[5]
Furthermore, Echinostoma miyagawai is a cryptic species and there is still debate about whether E. miyagawai and E. robustum should be considered as one species, or two separate species.[2][3][6] The TkD1Int5 sequence implies two individual species,[7] but the results from the mitochondrial genes cytochrome c oxidase, and NADH dehydrogenase are less clear.[2][3] This debate is further complicated by the notion that hybridisation between the two species might occur.[7]
References
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^ a b c Faltýnková, Anna; Georgieva, Simona; Soldánová, Miroslava; Kostadinova, Aneta (2015). "A re-assessment of species diversity within the 'revolutum' group of Echinostoma Rudolphi, 1809 (Digenea: Echinostomatidae) in Europe". Systematic Parasitology. 90 (1): 1–25. doi:10.1007/s11230-014-9530-3.
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^ a b c d e Nagataki, Mitsuru; Tantrawatpan, Chairat; Agatsuma, Takeshi; Sugiura, Tetsuro; Duenngai, Kunyarat; Sithithaworn, Paiboon; Andrews, Ross H.; Petney, Trevor N.; Saijuntha, Weerachai (2015). "Mitochondrial DNA sequences of 37 collar-spined echinostomes (Digenea: Echinostomatidae) in Thailand and Lao PDR reveals presence of two species: Echinostoma revolutum and E. miyagawai". Infection, Genetics and Evolution. 35: 56–62. doi:10.1016/j.meegid.2015.07.022.
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^ a b c d e Chai, Jong-Yil; Jung, Bong-Kwang; Chang, Taehee; Shin, Hyejoo; Cho, Jaeeun; Ryu, Jin-Youp; Kim, Hyun-Seung; Park, Kwanghoon; Jeong, Mun-Hyoo; Hoang, Eui-Hyug; Abdullah, Marzuki Bin Muhammad (2021). "Echinostoma miyagawai Ishii, 1932 (Echinostomatidae) from ducks in Aceh Province, Indonesia with special reference to its synonymy with Echinostoma robustum Yamaguti, 1935". The Korean Journal of Parasitology. 59 (1): 35–45. doi:10.3347/kjp.2021.59.1.35.
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^ Chai, Jong-Yil; Cho, Jaeeun; Chang, Taehee; Jung, Bong-Kwang; Sohn, Woon-Mok (2020). "Taxonomy of Echinostoma revolutum and 37-collar-spined Echinostoma spp.: A historical review". The Korean Journal of Parasitology. 58 (4): 343–371. doi:10.3347/kjp.2020.58.4.343.
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^ Izrailskaia, Anna V.; Besprozvannykh, Vladimir V.; Tatonova, Yulia V. (2021). "Echinostoma chankensis nom. nov., other Echinostoma spp. and Isthmiophora hortensis in East Asia: morphology, molecular data and phylogeny within Echinostomatidae". Parasitology. 148 (11): 1366–1382. doi:10.1017/S0031182021000950.
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^ Mohanta, Uday Kumar; Watanabe, Takuya; Ohari, Yuma; Itagaki, Tadashi (2020). "A rebuttal letter to letter to the editor by P. Heneberg on "Taxonomic comments on the validity of Echinostoma miyagawai Ishii, 1932 (Trematoda: Echinostomatidae)"". Parasitology International. 74: 101971. doi:10.1016/j.parint.2019.101971.
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^ a b Saijuntha, Weerachai; Tantrawatpan, Chairat; Agatsuma, Takeshi; Duenngai, Kunyarat; Sithithaworn, Paiboon; Petney, Trevor N.; Andrews, Ross H. (2020). "Intron sequence variation of the echinostomes (Trematoda; Echinostomatidae): implications for genetic investigations of the 37 collar-spined, Echinostoma miyagawai Ischii, 1932 and E. revolutum (Fröelich, 1802)". Parasitology Research. 119 (8): 2485–2494. doi:10.1007/s00436-020-06734-z.
