一种罕见的寄生在蚓喙上的外共生双壳类动物Sagamiscintilla thalassemicola (Galeommatoidea: galeomatidae)中伴生寄主的纬度变化

IF 1.1 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
Ryutaro Goto, Taigi Sato, Hiroki Nakajima, Takahiro Sugiyama, Hiroshi Ishikawa
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引用次数: 0

摘要

双壳纲:海壳纲:海壳纲:海壳纲:海壳纲)是一种罕见的外共生双壳类动物,生活在棘球线虫的喙部(环节纲:海壳纲:海壳纲:海壳纲),仅在日本温带地区发现。本研究在日本南部琉球群岛3个岛屿的潮间带滩涂上发现了大型潮尾动物Ochetostoma sp.(海尾纲:海尾纲:海尾纲:海尾纲)喙部的S. thalassemicola。这是在亚热带地区首次发现的非类人猿寄主上发现的地中海粘虫。此外,我们还在日本喜井半岛和歌山Kushimoto潮间带采集到了S. thalassemicola,这是该物种最东端记录的更新。地中海沙蚤(S. thalassemicola)线粒体细胞色素c氧化酶亚基I和核内转录间隔基因2的遗传差异,包括与亚热带Ochetostoma sp.和温带Anelassorhynchus sp.的遗传差异,可以认为是种内变异。这些结果表明,地中海沙门氏菌在温带和亚热带地区分别利用不同的蚓类寄主。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Latitudinal shift of the associated hosts in Sagamiscintilla thalassemicola (Galeommatoidea: Galeommatidae), a rare ectosymbiotic bivalve that lives on the proboscis of echiuran worms
Sagamiscintilla thalassemicola (Bivalvia: Galeommatoidea: Galeommatidae) is a rare ectocommensal bivalve that lives on the proboscis of echiuran worms, Anelassorhynchus spp. (Annelida: Thalassematidae: Thalassematinae: Thalassematini), and has been known only from the temperate zones of Japan. In this study, we found S. thalassemicola on the proboscis of the large echiuran Ochetostoma sp. (Thalassematidae: Thalassematinae: Thalassematini) on intertidal flats of three islands of the Ryukyu Archipelago, southern Japan. These are the first records of S. thalassemicola on non-Anelassorhynchus hosts and also from the subtropical regions. Additionally, we also collected S. thalassemicola from an intertidal flat of Kushimoto, Wakayama, Kii Peninsula, Japan, which is an update of the easternmost record of this species. The genetic differences in the mitochondrial cytochrome c oxidase subunit I and nuclear internal transcribed spacer 2 genes among S. thalassemicola, including those with Ochetostoma sp. from the subtropical region and with Anelassorhynchus spp. from the temperate region, can be considered within the intraspecific variation. These suggest that S. thalassemicola uses different echiuran hosts in the temperate and subtropical regions, respectively.
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来源期刊
CiteScore
2.30
自引率
8.30%
发文量
68
审稿时长
3-8 weeks
期刊介绍: JMBA is an international journal, publishing original research on all aspects of marine biology. It includes pioneering work taking place today on major issues concerning marine organisms and their environment. Subjects covered include: ecological surveys and population studies of marine communities; physiology and experimental biology; taxonomy, morphology and life history of marine animals and plants; and chemical and physical oceanographic work. Included with 2010 online subscriptions: Marine Biodiversity Records.
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