Graciela Colunga-Ramírez , Boglárka Sellyei , Kálmán Molnár , Csaba Székely , Gábor Cech
{"title":"侵染棘鲈鳃的两种黏液动物寄生虫的形态和系统发育比较:巨棘鲈和克雷普里鲈","authors":"Graciela Colunga-Ramírez , Boglárka Sellyei , Kálmán Molnár , Csaba Székely , Gábor Cech","doi":"10.1016/j.ijppaw.2025.101087","DOIUrl":null,"url":null,"abstract":"<div><div><em>Henneguya gigantea</em> and <em>Henneguya creplini</em> have been reported as spore-forming plasmodia infecting the gills of pikeperch. However, the latter has been documented to have a broader host range. Some remarkable differences have been observed between both <em>Henneguya</em> species: the shape and size of plasmodia and the length of their caudal appendages. To date, no molecular evidence has been provided for <em>H</em>. <em>gigantea</em>; while for <em>H</em>. <em>creplini</em>, the 18S rDNA has been applied for its classification. In this study, we analysed morphological and molecular data to elucidate the relationship of <em>H</em>. <em>gigantea</em> and <em>H</em>. <em>creplini</em> collected from the gills of the pikeperch. Morphologically, <em>H</em>. gigantea resulted in a cluster of plasmodia-forming cyst bodies, while <em>H</em>. <em>creplini</em> have been mostly reported as small plasmodia. The myxospores of the two species were distinguished by the length of their caudal appendages, which were longer in <em>H</em>. <em>gigantea</em> than in <em>H</em>. <em>creplini</em> (77–100 vs 14.4–40.1 μm). The rest of the spore characters are similar in both species. The 18S and 28S rDNA sequences show low sequence distance ≤0.76 % and 0.97 %, respectively. The data presented in this study, in conjunction with those collected from previous literature, suggests that caudal appendages may exhibit phenotypic plasticity within species, which must be considered before including new members of the <em>Henneguya</em> genus. Furthermore, ribosomal DNA sequences serve as an essential tool for referring the taxonomic classification of myxozoans that exhibit phenotypic plasticity. We propose that <em>H</em>. <em>gigantea</em> be reclassified as <em>H</em>. <em>creplini</em>.</div></div>","PeriodicalId":54278,"journal":{"name":"International Journal for Parasitology-Parasites and Wildlife","volume":"27 ","pages":"Article 101087"},"PeriodicalIF":2.2000,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Morphological and phylogenetic comparison of two myxozoan parasites infecting the gills of pikeperch (Sander lucioperca L.): Henneguya gigantea and Henneguya creplini\",\"authors\":\"Graciela Colunga-Ramírez , Boglárka Sellyei , Kálmán Molnár , Csaba Székely , Gábor Cech\",\"doi\":\"10.1016/j.ijppaw.2025.101087\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div><em>Henneguya gigantea</em> and <em>Henneguya creplini</em> have been reported as spore-forming plasmodia infecting the gills of pikeperch. However, the latter has been documented to have a broader host range. Some remarkable differences have been observed between both <em>Henneguya</em> species: the shape and size of plasmodia and the length of their caudal appendages. To date, no molecular evidence has been provided for <em>H</em>. <em>gigantea</em>; while for <em>H</em>. <em>creplini</em>, the 18S rDNA has been applied for its classification. In this study, we analysed morphological and molecular data to elucidate the relationship of <em>H</em>. <em>gigantea</em> and <em>H</em>. <em>creplini</em> collected from the gills of the pikeperch. Morphologically, <em>H</em>. gigantea resulted in a cluster of plasmodia-forming cyst bodies, while <em>H</em>. <em>creplini</em> have been mostly reported as small plasmodia. The myxospores of the two species were distinguished by the length of their caudal appendages, which were longer in <em>H</em>. <em>gigantea</em> than in <em>H</em>. <em>creplini</em> (77–100 vs 14.4–40.1 μm). The rest of the spore characters are similar in both species. The 18S and 28S rDNA sequences show low sequence distance ≤0.76 % and 0.97 %, respectively. The data presented in this study, in conjunction with those collected from previous literature, suggests that caudal appendages may exhibit phenotypic plasticity within species, which must be considered before including new members of the <em>Henneguya</em> genus. Furthermore, ribosomal DNA sequences serve as an essential tool for referring the taxonomic classification of myxozoans that exhibit phenotypic plasticity. We propose that <em>H</em>. <em>gigantea</em> be reclassified as <em>H</em>. <em>creplini</em>.</div></div>\",\"PeriodicalId\":54278,\"journal\":{\"name\":\"International Journal for Parasitology-Parasites and Wildlife\",\"volume\":\"27 \",\"pages\":\"Article 101087\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-05-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal for Parasitology-Parasites and Wildlife\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213224425000525\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal for Parasitology-Parasites and Wildlife","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213224425000525","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECOLOGY","Score":null,"Total":0}
Morphological and phylogenetic comparison of two myxozoan parasites infecting the gills of pikeperch (Sander lucioperca L.): Henneguya gigantea and Henneguya creplini
Henneguya gigantea and Henneguya creplini have been reported as spore-forming plasmodia infecting the gills of pikeperch. However, the latter has been documented to have a broader host range. Some remarkable differences have been observed between both Henneguya species: the shape and size of plasmodia and the length of their caudal appendages. To date, no molecular evidence has been provided for H. gigantea; while for H. creplini, the 18S rDNA has been applied for its classification. In this study, we analysed morphological and molecular data to elucidate the relationship of H. gigantea and H. creplini collected from the gills of the pikeperch. Morphologically, H. gigantea resulted in a cluster of plasmodia-forming cyst bodies, while H. creplini have been mostly reported as small plasmodia. The myxospores of the two species were distinguished by the length of their caudal appendages, which were longer in H. gigantea than in H. creplini (77–100 vs 14.4–40.1 μm). The rest of the spore characters are similar in both species. The 18S and 28S rDNA sequences show low sequence distance ≤0.76 % and 0.97 %, respectively. The data presented in this study, in conjunction with those collected from previous literature, suggests that caudal appendages may exhibit phenotypic plasticity within species, which must be considered before including new members of the Henneguya genus. Furthermore, ribosomal DNA sequences serve as an essential tool for referring the taxonomic classification of myxozoans that exhibit phenotypic plasticity. We propose that H. gigantea be reclassified as H. creplini.
期刊介绍:
The International Journal for Parasitology: Parasites and Wildlife (IJP-PAW) publishes the results of original research on parasites of all wildlife, invertebrate and vertebrate. This includes free-ranging, wild populations, as well as captive wildlife, semi-domesticated species (e.g. reindeer) and farmed populations of recently domesticated or wild-captured species (e.g. cultured fishes). Articles on all aspects of wildlife parasitology are welcomed including taxonomy, biodiversity and distribution, ecology and epidemiology, population biology and host-parasite relationships. The impact of parasites on the health and conservation of wildlife is seen as an important area covered by the journal especially the potential role of environmental factors, for example climate. Also important to the journal is ''one health'' and the nature of interactions between wildlife, people and domestic animals, including disease emergence and zoonoses.