Ghanei-Motlagh Reza, Hernández-Orts Jesús S, Fast Mark D, El-Matbouli Mansour, Saleh Mona
Division of Fish Health, University of Veterinary Medicine, Vienna, Austria.
Hoplite Research Lab, Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada.
Syst Parasitol. 2025 May 5;102(3):34. doi: 10.1007/s11230-025-10225-z.
Acanthocephalans collected from the stomach of the mackerel tuna (Euthynnus affinis Cantor) in the Persian Gulf off Iran were identified as Neorhadinorhynchus nudus Harada, 1938 based on morphological characters and molecular sequence data from mitochondrial (cytochrome c oxidase subunit I, COI) and nuclear ribosomal DNA (small and large subunit ribosomal DNA, 18S and 28S rDNA). Phylogenetic analyses of the order Echinorhynchida Southwell & Macfie, 1925 were performed based on the concatenated (18S+28S+COI) sequence data using maximum likelihood (ML) and Bayesian inference (BI) analyses. The results showed that N. nudus grouped together with species of Rhadinorhynchus Lühe, 1911, supporting the proposal that Neorhadinorhynchus Yamaguti, 1939 is a synonym of Rhadinorhynchus. Rhadinorhynchus mariserpentis Steinauer et al., 2019 was also treated as a junior synonym of Rhadinorhynchus nudus. Haplotype network analysis revealed no correlation between haplotype distribution and geographical origin of R. nudus.
从伊朗波斯湾的鲭金枪鱼（Euthynnus affinis Cantor）胃中采集的棘头虫，根据其形态特征以及线粒体（细胞色素c氧化酶亚基I，COI）和核糖体DNA（小亚基和大亚基核糖体DNA，18S和28S rDNA）的分子序列数据，被鉴定为1938年的裸新棘吻虫（Neorhadinorhynchus nudus Harada）。基于串联（18S + 28S + COI）序列数据，使用最大似然法（ML）和贝叶斯推断（BI）分析对1925年的棘吻目（Echinorhynchida Southwell & Macfie）进行了系统发育分析。结果表明，裸新棘吻虫与1911年的柔棘吻虫属（Rhadinorhynchus Lühe）的物种聚在一起，支持了1939年的新棘吻虫属（Neorhadinorhynchus Yamaguti）是柔棘吻虫属同义词的提议。2019年的海蛇柔棘吻虫（Rhadinorhynchus mariserpentis Steinauer et al.）也被视为裸新棘吻虫的次异名。单倍型网络分析显示，裸新棘吻虫的单倍型分布与其地理起源之间没有相关性。
