Long-distance dispersal from island to island: colonisation of an oceanic island in the vicinity of the Asian continent by the land snail genus Karaftohelix (Gastropoda: Camaenidae)

IF 0.8 4区生物学 Q3 ZOOLOGY

Molluscan Research Pub Date : 2022-04-03 DOI:10.1080/13235818.2022.2066454

K. Kimura, S. Chiba, L. Prozorova, J. Pak

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引用次数: 2

Abstract

ABSTRACT Ullung Island is an oceanic island in the Sea of Japan about 130 km distant from the Korean peninsula. The biota of this oceanic island is thought to be derived from the closest continental region while the importance of long-distance dispersal from other areas for the formation of the Ullung Island biota was considered negligible. In this study, we have examined the origin of the Ullung Island-endemic land snail Karaftohelix adamsi (Kuroda & Hukuda, 1944) using a molecular phylogenetic approach with two mitochondrial (COI and 16S rRNA) and nuclear (ITS regions) DNA sequences. Our results revealed that K. adamsi has originated from the northernmost region of the Japanese archipelago or Sakhalin Island, most likely from Rebun Island of Hokkaido, by long-range dispersal across a distance of 1200 km. This finding reveals that the biota of the oceanic Ullung Island has not exclusively originated from the Asian mainland, but that some elements have originated from the more distant archipelago of Japan and the Far East of Russia.

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从一个岛屿到另一个岛屿的远距离传播：陆生蜗牛属Karaftohelix在亚洲大陆附近的一个海洋岛屿上的定居（腹足目：Camaenidae）

郁隆岛是位于日本海的一个海洋岛屿，距离朝鲜半岛约130公里。这个海洋岛屿的生物群被认为是来自最近的大陆区域，而其他地区的远距离扩散对乌隆岛生物群形成的重要性被认为是微不足道的。在这项研究中，我们使用分子系统发育方法研究了Ullung岛特有的陆地蜗牛Karaftohelix adamsi (Kuroda & Hukuda, 1944)的起源，该方法具有两个线粒体(COI和16S rRNA)和核(ITS区域)DNA序列。我们的研究结果表明，K. adamsi起源于日本群岛或库页岛的最北端地区，最有可能来自北海道热本岛，远距离散布1200公里。这一发现表明，海洋郁隆岛的生物群并不完全来自亚洲大陆，有些元素来自更遥远的日本群岛和俄罗斯远东地区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molluscan Research 生物-动物学

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

>12 weeks

期刊介绍： Molluscan Research is an international journal for the publication of authoritative papers and review articles on all aspects of molluscan research, including biology, systematics, morphology, physiology, ecology, conservation, biogeography, genetics, molecular biology and palaeontology. While the scope of the journal is worldwide, there is emphasis on studies relating to Australasia and the Indo-west Pacific, including East and South East Asia. The journal’s scope includes revisionary papers, monographs, reviews, theoretical papers and briefer communications. Monographic studies of up to 73 printed pages may also be considered. The journal has been published since 1957 (as the Journal of the Malacological Society of Australia until 1993). It is free to members of the Malacological Society of Australasia and the Society for the Study of Molluscan Diversity.