1901年吕赫（Lühe）和1934年山口（Yamaguti）所描述的东亚鱼类的复殖吸虫（双腔吸虫目：列叶吸虫科）物种的形态学和分子数据，以及1899年半尾吸虫总科（Hemiuroidea Looss）内的系统发育关系。
Morphological and molecular data for species of Lühe, 1901 and Yamaguti, 1934 (Digenea: Lecithasteridae) from fish of East Asia and phylogenetic relationships within the Hemiuroidea Looss, 1899.
作者信息
Atopkin D M, Nakao M, Besprozvannykh V V, Ha N D, Nguyen H V, Sasaki M
机构信息
Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia.
Department of Cell Biology and Genetics, Far Eastern Federal University, Vladivostok, Russia.
出版信息
J Helminthol. 2018 Nov 26;94:e14. doi: 10.1017/S0022149X18001049.
Four representatives of the genus Lecithaster and one representative of the genus Hysterolecithoides were found during investigation of the trematode fauna of fish species in Vietnamese, Japanese and eastern coastal waters of the Russian Far East. Based on morphometric data, adult trematodes from Vietnamese Strongylura strongylura and Russian Acanthogobius flavimanus were identified as Lecithaster confusus, trematodes from Vietnamese Hemirhamphus marginatus as L. sayori and from osmerid fishes as L. salmonis. Further, a single specimen of Lecithaster sp. and representatives of Hysterolecithoides epinepheli were found in Vietnamese Siganus fuscescens. Morphological and molecular data, including 18S ribosomal DNA (rDNA) V4 fragment, 28S rDNA D1-D3 fragment, internal transcribed spacers (ITS) and a mitochondrial COI gene fragment were analysed for Lecithaster spp. The results revealed that L. sayori and L. salmonis are not synonyms of L. stellatus and L. gibbosus, respectively, but that Hysterolecithoides frontilatus and H. guangdongensis are junior synonyms of H. epinepheli. The 28S-rDNA-based phylogenetic tree of Hemiuroidea showed a distinct position for the genus Lecithaster with internal differentiation into three subclades, including L. confusus, L. sayori and Lecithaster sp. within the first subclade, L. mugilis and L. sudzuhensis within the second subclade and L. salmonis and L. gibbosus within the third subclade. Bayesian phylogenetic reconstructions of Hemiuroidea showed four clades for members of Hemiuridae and Lecithasteridae. The first clade consisted of Hemiuridae representatives and the second clade represented the genus Lecithaster. The third clade included genera Aponurus and Lecithophyllum (Lecithasteridae) and the fourth clade combined members of lecithasterid Quadrifoliovariinae and Hysterolecithinae and hemiurid Opisthadeninae and Bunocotylidae with high statistical support.
在对越南、日本以及俄罗斯远东地区东部沿海水域鱼类的吸虫类群进行调查期间，发现了4种叶形吸虫属（Lecithaster）的代表物种以及1种拟后睾吸虫属（Hysterolecithoides）的代表物种。基于形态测量数据，来自越南的尖嘴扁颌针鱼（Strongylura strongylura）和俄罗斯的黄鳍刺虾虎鱼（Acanthogobius flavimanus）体内的成年吸虫被鉴定为混淆叶形吸虫（Lecithaster confusus），来自越南黑背鳍飞鱼（Hemirhamphus marginatus）体内的吸虫被鉴定为佐氏叶形吸虫（L. sayori），来自胡瓜鱼科鱼类体内的吸虫被鉴定为鲑叶形吸虫（L. salmonis）。此外，在越南的黄斑篮子鱼（Siganus fuscescens）体内发现了1个叶形吸虫属未定种（Lecithaster sp.）的标本以及巨石斑鱼后睾吸虫（Hysterolecithoides epinepheli）的代表物种。对叶形吸虫属物种分析了形态学和分子数据，包括18S核糖体DNA（rDNA）V4片段、28S rDNA D1-D3片段、内转录间隔区（ITS）以及线粒体细胞色素氧化酶亚基I（COI）基因片段。结果显示，佐氏叶形吸虫和鲑叶形吸虫分别不是星状叶形吸虫（L. stellatus）和驼背叶形吸虫（L. gibbosus）的同物异名，但前睾后睾吸虫（Hysterolecithoides frontilatus）和广东后睾吸虫（H. guangdongensis）是巨石斑鱼后睾吸虫的次同物异名。基于28S-rDNA构建的半尾吸虫总科系统发育树显示，叶形吸虫属处于一个独特的位置，内部可分化为三个亚分支，其中第一个亚分支包括混淆叶形吸虫、佐氏叶形吸虫和叶形吸虫属未定种，第二个亚分支包括 Mugilis叶形吸虫（L. mugilis）和津次叶形吸虫（L. sudzuhensis），第三个亚分支包括鲑叶形吸虫和驼背叶形吸虫。半尾吸虫总科的贝叶斯系统发育重建显示，半尾科和叶形吸虫科的成员可分为四个分支。第一个分支由半尾科的代表物种组成，第二个分支代表叶形吸虫属。第三个分支包括阿波吸虫属（Aponurus）和叶形吸虫属（Lecithophyllum）（叶形吸虫科），第四个分支将叶形吸虫科的四叶殖亚科（Quadrifoliovariinae）和后睾吸虫亚科（Hysterolecithinae）以及半尾科的后腺亚科（Opisthadeninae）和泡杯科（Bunocotylidae）的成员组合在一起，具有较高的统计支持率。
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