Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome
The genus Hysterothylacium (Ascaridida: Raphidascarididae) is among the commonest groups of parasitic nematodes occurring in the digestive tract of marine fishes. In the present study, a new species of Hysterothylacium, H. hainanense sp. n. collected from Uranoscopus tosae (Jordan & Hubbs) a...
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Elsevier
2025-04-01
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| Series: | International Journal for Parasitology: Parasites and Wildlife |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213224425000070 |
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| author | Hui-Xia Chen Hai-Xia Qiao Wen-Ting Zhao Xiao-Hong Gu Liang Li |
| author_facet | Hui-Xia Chen Hai-Xia Qiao Wen-Ting Zhao Xiao-Hong Gu Liang Li |
| author_sort | Hui-Xia Chen |
| collection | DOAJ |
| description | The genus Hysterothylacium (Ascaridida: Raphidascarididae) is among the commonest groups of parasitic nematodes occurring in the digestive tract of marine fishes. In the present study, a new species of Hysterothylacium, H. hainanense sp. n. collected from Uranoscopus tosae (Jordan & Hubbs) and U. japonicus Houttuyn (Perciformes: Uranoscopidae) in the Chinese waters was described using integrative methods, including light and scanning electron microscopy, and ASAP and BI analyses based on the ITS sequence data. The complete mitochondrial genome of the new species was sequenced and annotated, which represents the first mitogenomic data for the genus Hysterothylacium, and also for the family Raphidascarididae. The mitogenome of H. hainanense sp. n. is 14059 bp in length, including 12 protein coding genes (missing atp8), 22 tRNA genes, 2 rRNA genes and 2 non-coding regions, which has 67.0% of overall A + T content, and represents the lowest level of A + T content in the ascaridoid mitogenomes reported so far. Molecular phylogenetic results suggested a close affinity between H. hainanense sp. n. and H. fabri in the genus Hysterothylacium. |
| format | Article |
| id | doaj-art-6a8d59ed4bf5432f831db5a730d8186c |
| institution | Kabale University |
| issn | 2213-2244 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal for Parasitology: Parasites and Wildlife |
| spelling | doaj-art-6a8d59ed4bf5432f831db5a730d8186c2025-02-07T04:47:30ZengElsevierInternational Journal for Parasitology: Parasites and Wildlife2213-22442025-04-0126101042Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genomeHui-Xia Chen0Hai-Xia Qiao1Wen-Ting Zhao2Xiao-Hong Gu3Liang Li4Hebei 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, PR China; Ministry of Education Key Laboratory of Molecular and Cellular Biology, 050024, Shijiazhuang, Hebei Province, PR ChinaHebei 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, PR ChinaHebei 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, PR ChinaHebei 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, PR ChinaHebei 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, PR China; Ministry of Education Key Laboratory of Molecular and Cellular Biology, 050024, Shijiazhuang, Hebei Province, PR China; Corresponding author. 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, PR China.The genus Hysterothylacium (Ascaridida: Raphidascarididae) is among the commonest groups of parasitic nematodes occurring in the digestive tract of marine fishes. In the present study, a new species of Hysterothylacium, H. hainanense sp. n. collected from Uranoscopus tosae (Jordan & Hubbs) and U. japonicus Houttuyn (Perciformes: Uranoscopidae) in the Chinese waters was described using integrative methods, including light and scanning electron microscopy, and ASAP and BI analyses based on the ITS sequence data. The complete mitochondrial genome of the new species was sequenced and annotated, which represents the first mitogenomic data for the genus Hysterothylacium, and also for the family Raphidascarididae. The mitogenome of H. hainanense sp. n. is 14059 bp in length, including 12 protein coding genes (missing atp8), 22 tRNA genes, 2 rRNA genes and 2 non-coding regions, which has 67.0% of overall A + T content, and represents the lowest level of A + T content in the ascaridoid mitogenomes reported so far. Molecular phylogenetic results suggested a close affinity between H. hainanense sp. n. and H. fabri in the genus Hysterothylacium.http://www.sciencedirect.com/science/article/pii/S2213224425000070ParasiteRaphidascarididaeIntegrative taxonomySpecies delimitationASAPMarine fish |
| spellingShingle | Hui-Xia Chen Hai-Xia Qiao Wen-Ting Zhao Xiao-Hong Gu Liang Li Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome International Journal for Parasitology: Parasites and Wildlife Parasite Raphidascarididae Integrative taxonomy Species delimitation ASAP Marine fish |
| title | Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome |
| title_full | Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome |
| title_fullStr | Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome |
| title_full_unstemmed | Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome |
| title_short | Integrative evidence reveals a new species of Hysterothylacium (Nematoda: Ascaridoidea), with the characterization of its complete mitochondrial genome |
| title_sort | integrative evidence reveals a new species of hysterothylacium nematoda ascaridoidea with the characterization of its complete mitochondrial genome |
| topic | Parasite Raphidascarididae Integrative taxonomy Species delimitation ASAP Marine fish |
| url | http://www.sciencedirect.com/science/article/pii/S2213224425000070 |
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